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+2 fzpj ghlj;jpy; cWjpahf Njh;r;rp ngWtjw;fhd
Kf;fpa tpdhf;fs;
fPNo nfhLf;fg;gl;Ls;s tpdhf;fis kl;Lk; gapw;rp nra;J
ghh;j;jhy; NghJkhdJ fz;bg;ghf 100 kjpg;ngz;fSf;F Nky;
ngwyhk; vd;gJ cz;ik 64 gj;J kjpg;ngz; tpdhf;fs;
nfhLf;fg;gl;Ls;sJ ,jpypUe;J fz;bg;ghf 5 my;yJ 6
tpdhf;fs; tUk;
6 kjpg;ngz; tpdhf;fspy; ghlk; 9-y; jdpepiy fzf;fpay;
gFjpapy; nka;ml;ltiz (Truth Table) apy; fz;bg;ghf xU tpdh
tUk; kw;nwhU tpdh vLj;Jf;fhl;Lfs; 9.12, 9.13, 9.14, 9.15,
9.16, 9.17, 9.19, 9.20 kw;Wk; Fyj;jpd; ePf;fy; tpjpfs;, gpd;
jpUg;Gif tpjpfs ; ,tw;wpy; ,Ue;J tUk;
XU kjpg;ngz; tpdhf;fspy; Book back question Kjy;
njhFjpapy; 121 tpdhf;fSk; ,uz;lhk; njhFjpapy; 150
tpdhf;fSk; Mf nkhj;jk; 271 tpdhf;fs; ,tw;wpy; ,Ue;J
mg;gbNa ve;j khw;wKk; nra;ahky; 30 tpdhf;fs; tUk;
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Mf nkhj;jk;
,tw;iw kl;Lk; gbj;J ed;whf gapw;rp nra;J ghh;j;jhy;
fzpjj;jpy; KOikahd ntw;wpg;ngwyhk.; Mrphpa ez;gh;fs;
kPj;jpwd; Fiwthd khzth;fSf;F ,ijkl;Lk; gaw;rp nra;J
ek;Kila ghlj;jpy; 100% rjtPj Njh;r;rpia cWjpnra;J
nfhs;syhk;.
vd;Wk;
10 kjpg;ngz;fs; tpdhf;fs; 6 = 60
6 kjpg;ngz;fs; tpdhf;fs; 2 = 12
1 kjpg;ngz; tpdhf;fs; 30 = 30
nkhj;jk; = 102
xU ehSf;F ,uz;L tpdhf;fs; tPjk; rupahd gapw;rp
nra;jhy; ,uz;L khjj;jpy; KOikahd ntw;wpia
mile;Jtplyhk;
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1. ep&gpf;f : cos ( A+B ) =
cos A cos B – sin A sin B
2. Sin ( A- B ) = sin A cos B – cos A sin B vd ntf;lh; Kiwapy; ep&gp
3. + 3 vdpy;
x ( . ( . ) vd rhpghh;f;f.
4. = + + , = + , + + , = + +2 f;F
( d vd;gijr;
rhpghh;f;f.
5.
kw;Wk;
=
=
vd;w NfhLfs; ntl;bf; nfhs;Sk;
vdf; fhl;Lf . NkYk; mit ntl;Lk; Gs;spiaf; fhz;f.
6.
vd;w Nfhl;il cs;slf;fpaJk;
vd;w
Nfhl;bw;F ,izahdJkhd jsj;jpd; ntf;lh; kw;Wk; fhh;Brpad;
rkd;ghLfisf; fhz;f.
7. (1,3,2 ) vd;w Gs;sp topr; nry;tJk;
kw;Wk;
vd;w NfhLfSf;F ,izahdJkhd jsj;jpd;
ntf;lh; kw;Wk; fhh;Brpad; rkd;ghLfisf; fhz;f.
8. (-1,3,2) vd;w Gs;sp topr;nry;tJk; x + 2y + 2z= 5 kw;Wk; 3x + y + 2z = 8
Mfpa jsq;fSf;Fr; nrq;Fj;jhdJkhd jsj;jpd; ntf;lh; kw;Wk;
fhh;Brpad; rkd;ghLfisf; fhz;f.
P.A. godpag;gd; M.Sc.M.Phil.,B.Ed
KJfiy fzpj gl;ljhup Mrpupah;
muR Mz;fs; Nky;epiyg;gs;sp
gl;Lf;Nfhl;il
miyNgrp vz; : 9443407917
kpf Kf;fpa tpdhf;fs;
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9. A (1,-2,3) kw;Wk; B(-1,2,-1) vd;w Gs;spfs; topNar; nry;yf;$baJk;
vd;w Nfhl;bw;F ,izahdJkhd jsj;jpd; ntf;lh;
kw;Wk; fhh;Brpad; rkd;ghLfisf; fhz;f.
10. (1,2,3) kw;Wk; (2,3, 1) vd;w Gs;spfs; topNar; nry;yf; $baJk;
3x -2y +4z -5 = 0 vd;w jsj;jpw;Fr; nrq;Fj;jhfTk; mike;j jsj;jpd;
ntf;lh; kw;Wk; fhh;Brpad; rkd;ghLfisf; fhz;f.
11.
vd;w Nfhl;il cs;slf;fpaJk; ( -1, 1, -1) vd;w Gs;sp
topNar; nry;yf; $baJkhd ntf;lh; kw;Wk; fhh;Brpad; rkd;ghLfisf;
fhz;f.
12. 3 + 4 + 2 , 2 -2 - kw;Wk; 7 + Mfpatw;iw epiy
ntf;lh;fshff; nfhz;l Gs;spfs; topNar; nry;Yk; jsj;jpd; ntf;lh;
kw;Wk; fhh;Brpad; rkd;ghLfisf; fhz;f.
13. ntl;Lj;Jz;L tbtpy; xU jsj;jpd; rkd;ghl;ilj; jUtpf;f.
14. xU Kf;Nfhzj;jpd; Fj;Jf;NfhLfs; xNu Gs;spapy; re;jpf;Fk; vd;gjid
ntf;lh; Kiwapy; epWTf.
15. cos (A – B ) = cos A cos B + sin A sin B vd epWTf.
16. sin ( A + B ) = sin A cosB + cos A sin B vd epWTf.
17.
kw;Wk;
vd;w NfhLfs; ntl;Lk; vdf;
fhl;b mit ntl;Lk; Gs;spiaf; fhz;f.
18. ( 2, -1, -3 ) topNar; nry;yf;$baJk;
kw;Wk;
Mfpa NfhLfSf;F ,izahf cs;sJkhd jsj;jpd;
ntf;lh; kw;Wk; fhh;Brpad; rkd;ghLfisf; fhz;f.
19. ( -1, 1,1 ) kw;Wk; ( 1, -1, 1 ) Mfpa Gs;spfs; topNar; nry;yf; $baJk;
x+ 2y + 2z = 5 vd;w jsj;jpw;F nrq;Fj;jhf miktJkhd jsj;jpd;
ntf;lh; kw;Wk; fhh;Brpad; rkd;ghl;ilf; fhz;f.
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20. (2, 2, -1) (3, 4, 2 ) kw;Wk;; ( 7, 0, 6) Mfpa Gs;spfs; topNar; nry;yf;$ba
jsj;jpd; ntf;lh; kw;Wk; fhh;Brpad; rkd;ghl;ilf; fhz;f.
21. P vDk; Gs;sp fyg;ngz; khwp z If; Fwpj;jhy; P -,d;
epakg;ghijia gpd;tUtdtw;wpw;f fhz;f.
i) Re
= 1
22. P vDk; Gs;sp fyg;ngz; khwp z If; Fwpj;jhy; P -,d;
epakg;ghijia gpd;tUtdtw;wpw;f fhz;f.
i) Re
= 1
23. P vDk; Gs;sp fyg;ngz; khwp z If; Fwpj;jhy; P -,d;
epakg;ghijia gpd;tUtdtw;wpw;f fhz;f.
i) Im
= -2
24. P vDk; Gs;sp fyg;ngz; khwp z If; Fwpj;jhy; P -,d;
epakg;ghijia gpd;tUtdtw;wpw;f fhz;f.
i) arg
=
25. P vDk; Gs;sp fyg;ngz; khwp z If; Fwpj;jhy; P -,d; epakg;ghijia gpd;tUtdtw;wpw;f fhz;f.
i) arg
=
26. x2 – 2 px + ( p2 + q2 ) = 0 vd;w rkd;ghl;bd; %yq;fs; kw;Wk;
tan
vdpy;
=qn-1
vd epWTf.
27. x2 – 2x + 4 = 0 ,d; %yq;fs; kw;Wk; vdpy;
n - n = i2n+1 sin
mjpypUe;J 9 - 9 d; kjpg;ig ngWf.
28. x +
= 2 cos , y +
= 2 cos vdpy;
(i)
+
= 2 cos ( m - n )
(ii)
-
= 2i sin ( m - n ) vdf; fhl;Lf.
29. a = cos 2 + i sin 2 kw;Wk;
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c = cos 2 vdpy; i)
= 2 cos( + )
i)
= 2 cos 2 ( – ) vd ep&gp
30. (
,d; vy;yh kjpg;GfisAk; fhz;f?
31. (
,d; vy;yh kjpg;GfisAk; fhz;f?
32. jPu;f;f : x4 – x3 + x2- x + 1 = 0
33. (
–
,d; vy;yh kjpg;GfisAk fhz;f kw;Wk; mjd; kjpg;Gfspd;
ngUf;fw;gyd; 1 vdTk; fhl;Lf?
34. vd;git x2 – 2x + 2 = 0 ,d; %yq;fs; kw;Wk;
cot vdpy;
=
vdf; fhl;Lf?
35. x9 + x5 – x4 – 1 = 0 vd;w rkd;ghl;ilj; jPh;f;f.
36. x7 + x4 + x3 + 1=0 vd;w rkd;ghl;ilj; jPh;f;f.
37. 5x + 12y = 9 vd;w Neh;f;NfhL mjpgutisak; x2 – 9y2 = 9 – Ij;
njhLfpwJ vd ep&gpf;f . NkYk; njhLk; Gs;spiaAk; fhz;f.
38. x – y + 4 = 0 vd;w Neh;f;NfhL ePs;tl;lk; x2 + 3y2 = 12 f;F njhLNfhlhf
cs;sJ vd ep&gpf;f. NkYk; njhLk; Gs;spiaAk; fhz;f.
39. gpd;tUk; mjpgutisaj;jpd; rkd;ghL fhz;f.
(i) mjpgutisaj;jpd; ikak; ( 2 ,4 ) NkYk; ( 2, 0) topNa nry;fpwJ.
,jd; njhiyj; njhLNfhLfs; x + 2y – 12 = 0 kw;Wk; x – 2y + 8 = 0
Mfpatw;wpw;F ,izahf ,Uf;fpd;wd.
40. x – 2y + 8 = 0 I xU njhiyj; njhLNfhlhfTk; (6,0) kw;Wk; (-3, 0) vd;w Gs;spfs; topNa nry;yf;$baJkhd nrt;tf mjpgutisaj;jpd; rkd;ghL fhz;f.
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41. 4y2 = x3 vd;w tistiuapy; x = 0 ,ypUe;J x = 1 tiuAs;s tpy;ypd;
ePsj;ijf; fhz;f.
42.
+
= 1vd;w tistiuapd; ePsj;ijf; fhz;f.
43. y = sin x x = 1 vd;w tistiu x = 0 , x = kw;Wk; x –mr;R Mfpatw;why;
Vw;gLk; gug;gpid x mr;rpidg; nghWj;J Row;Wk; Nghj fpilf;Fk;
jplg;nghUspd; tisgug;G
2
44. x = a(t + sin t), y = a(1 + cos t) vd;w tl;l cUs; tis (cycloid) mjd;
mbg;gf;fj;ijg; (x – mr;R) nghWj;J Row;Wtjhy; Vw;gLk; jplg;nghUspd;
tisgug;igf; fhz;f.
45. Muk; a cila tl;lj;jpd; Rw;wsitf; fhz;f.
46. x = a(t – sin t) , y = a(1 – cos t) vd;w tistiuapd; ePsj;jpid t = 0 Kjy;
t = tiu fzf;fpLf.
47. y2 = 4 vd;w gutisaj;jpd; mjd; nrt;tfyk; tiuapyhd gug;gpid x –
mr;rpd; kPJ Row;Wk;NghJ fpilf;Fk; jplg; nghUspd; tisgug;igf;
fhz;f. .
48. Muk; r myFfs; cs;s Nfhsj;jpd; ikaj;jpypUe;J a kw;Wk; b myFfs; njhiytpy; mike;j ,U ,izahd jsq;fs; Nfhsj;ij ntl;Lk;NghJ ,ilg;gLk; gFjpapd; tisgug;G 2r (b – a) vd epWTf. ,jpypUe;J Nfhsj;jpd; tisgug;ig tUtp (b > a)
49. ( Z, * ) xU Kbtw;w vgPypad; Fyk; vdf; fhl;Lf ,q;F * MdJ a * b= a + b + 2 vDkhW tiuaWf;fg;gl;Ls;sJ.
50.
; x R – {0}, vd;w mikg;gpy; cs;s mzpfs; ahTk; mlq;fpa
fzk; G MdJ mzpg;ngUf;fypd; fPo; xU Fyk; vdf; fhl;Lf.
51. G = {a + b / a, b Q} vd;gJ $l;liyg; nghWj;j xU Kbtw;w vgPypad; Fyk; vdf; fhl;Lf.
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52. 1 Ij; jtpu kw;w vy;yh tpfpjKW vz;fSk; mlq;fpa fzk; G vd;f. G
,y; * I a * b = a + b – ab , a, b, G vDkhW tiuaWg;Nghk; ,
( G , * ) xU Kbtw;w vgPypad; Fyk; vdf; fhl;Lf?
53. G+r;rpakw;w fyg;ngz;fspd; fzkhd c- { 0 } ,y; tiuaWf;fg;gl;l
f1(z) = z , f2(z) = -z , f3 (z) =
, f4(z) =
z c-{0} vd;w rhu;Gfs; ahTk;
mlq;fpa fzk; { f1, f2, f3,f4} MdJ rhu;Gfspd; Nrh;g;gpd; fPo; xU vgPypad; Fyk; mikf;Fk; vd epWTf?
54. (Zn , +n) xU Fyk; vdf; fhl;Lf.
55. (z7 – { [ 0 ] } , .7 ) xU Fyj;ij mikf;Fk; vdf; fhl;Lf?
56. tof;fkhd ngUf;fypd; fPo; 1- ,d; n- Mk; gb %yq;fs; Kbthd Fyj;ij mikf;Fk; vdf; fhl;Lf?
57. G vd;gJ kpif tpfpjKW vz; fzk; vd;f. a * b =
vDkhW
tiuaWf;fg;gl;l nrayp * - ,d; fPo; G xU Fyj;ij mikf;Fk;
vdf;fhl;Lf. a, b G
58.
vd;fpw fzk;
mzpg;ngUf;fypd; fPo; xU Fyj;ij mikf;Fk; vdf; fhl;Lf. ( = 1 )
59. | z | = 1 vDkhW cs;s fyg;ngz;fs; ahTk; mlq;fpa fzk; M Mdj fyg;ngz;fspd; ngUf;fypd; fPo; xU Fyj;ij mikf;Fk; vdf; fhl;Lf.
60. -1 I jtpu kw;w vy;yh tpfpjKW vz;fSk; cs;slf;fpa fzk; G MdJ a * b = a + b + ab vDkhW tiuaWf;fg;gl;l nrayp * - ,d; fPo; xU vgPypad; mikf;Fk; vdf; fhl;Lf ?
61. 11- ,d; kl;Lf;F fhzg;ngw;w ngUf;fypd; fPo; { [ 1 ] , [ 3 ] , [ 4 ] , [5 ] ,
[ 9 ] } vd;w fzk; xU vgPypad; Fyj;ij mikf;Fk; vdf; fhl;Lf?
62.
a R –{0} mikg;gpy; cs;s vy;yh mzpfSk; mlq;fpa fzk;
mzpg;ngUf;fypd; fPo; xU vgPypad; Fyj;ij mikf;Fk; vdf; fhl;Lf?
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63. G = { 2n / n Z} vd;w fzkhdJ ngUf;fypd; fPo; xU vgPypad; Fyj;ij mikf;Fk; vdf; fhl;Lf.
ENGLISH MEDIUM
1. Prove that cos (A+B) =cosA cosB –sin A sin B
2. Prove that sin (A-B) = sin A cos B – cos A sin B.
3. If = + 3 - , = -2 + 5 , = -3
verify that x ( x )=( . ) -( . )
4. Verify ( x ) x ( x ) = [ ] - [ ] for , and in
= + + , = 2 + , = 2 + + , = + +2
5. Show that the lines
=
=
and
=
=
intersect and find their point of
intersection
6. Altitudes of a triangle are concurrent – prove by vector method
7. Prove that cos (A-B) = cos A cos B + sin A sin B
8. Prove that sin (A +B ) = sin A cos B + cos A sinB
9. Show that the lines
=
=
and
=
=
intersect and find their point of
intersection
10. Find the vector and cartesian equations of the plane passing through the points ( 2,2,-1) ,
(3,4,2) and ( 7 , 0, 6)
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11. Find the vector and cartesian equation of the plane containing the line
=
=
and
parallel to the line
=
=
12. Find the vector and cartesian equation of the plane through the point ( 1, 3, 2) and
parallel to the lines
=
=
and
=
=
13. Find the vector and cartesian equation to the plane through the point (-1 , 3, 2 ) and
perpendicular to the planes x+2y ++2z = 5 and
3x+y+2z = 8
14. Find the vector and cartesian equation of the plane passing through the points A(1,-2,3) and
B(-1,2,-1) and is parallel to the line
=
=
15. Find the vector and cartesian of the plane through the points ( 1, 2,3) and ( 2, 3,1)
perpendicular to the plane 3x -2y + 4z-5 = 0
16. Find the vector and cartesian equation of the plane containing the line
=
=
and passing through the point (-1, 1, -1 )
17. Find the vector and cartesian equation of the plane passing through the points with position
vectors
3 +4 + 2 , 2 - 2 - and 7 +
18. Derive the equations of the plane in the intercept form
19. Find the vector and cartesian equations of the plane passing through the points (-1,1,1) and
( 1, -1, 1) and perpendicular to the plane x + 2y + 2z = 5
20. Find the vector and cartesian equations of the plane passing through the points (-1,1,1) and
(1,-1,1) and perpendicular to the plane x + 2y + 2z = 5
21. P represents the variable complex number z . Find the locus of P. if
Re
= 1
22. P represents the variable complex number z . Find the locus of P. if
Im
= -2
23. P represents the variable complex number z . Find the locus of P. if
arg
=
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24. If are the roots of the equation x2 – 2 px + ( p2 + q2 ) = 0 and tan
=qn-1
25. If and are the roots of x2 – 2x + 4 = 0 Prove that
n - n = i2n+1 sin
and deduct 9 - 9
26. If x +
= 2 cos , y +
= 2 cos show that
(iii)
+
= 2 cos ( m - n )
(iv)
-
= 2i sin ( m - n ) .
27. If a = cos 2 + i sin 2 and
c = cos 2 Prove that
i)
= 2 cos( + )
ii)
= 2 cos 2 ( – )
28. Find all the values of the following : (
29. Solve : x4 – x3 + x2- x + 1 = 0
30. Find all the values of (
–
and hence prove that the product of the values is 1
31. P represents the variable complex number z . Find the locus of P. if
Re
= 1
32. P represents the variable complex number z . Find the locus of P. if
arg
=
33. If are the roots of x2 – 2x + 2 = 0 and cot show that
=
34. Solve the equation : x9 + x5 – x4 – 1 = 0
35. Solve the equation : x7 + x4 + x3 + 1=0
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36. Find all the equation : (
37. Prove that the line 5x + 12y = 9 touches the hyperbola x2 – 9y2 = 9 and find the point of
content
38. Show that the line x – y + 4 = 0 is a tangent to the ellipse x2 + 3y2 = 12. Find the co –
ordinates of the point of contact.
39. Find the equation of the hyperbola if
(i) its asymptotes are parallel to x + 2y – 12 = 0 and x – 2y + 8 = 0
(2,4) is the centre of the hyperbola and it passes through (2, 0)
40. Find the equation of the rectangular hyperbola which has for one of its asymptotes the line
x + 2y – 5 = 0 and passes through the points (6, 0) and (-3, 0)
41. Find the length of the curve 4y2 = x3 between x = 0 and x = 1
42. Find the length of the curve
+
= 1
43. Show that the surface area of the solid obtained by revolving the arc of the curve y = sin x
from x = 0 to x = about x – axis is 2
44. Find the surface area of the solid generated by revolving the cycloid x = a(t + sin t), y = a(1 +
cos t) about its base (x – axis).
45. Find the perimeter of the circle with radius a.
46. Find the length of the curve x = a(t – sin t) , y = a(1 – cos t) between t = 0 and
47. Find the surface area of the solid generated by revolving the arc of the parabola y2 = 4ax,
bounded by its latus rectum about x – axis.
48. Prove that the curved surface area of a sphere of radius r intercepted between two parallel
planes at a distance a and b from the centre of the sphere is 2r (b – a) and hence deduct
the surface area of the sphere. (b > a)
49. Show that (z, *) is an infinite abelian group where * is defined as a * b = a + b + 2
50. Show that the set G of all matrices of the form
, where x R – {0}, is a group
under matrix multiplication.
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51. Show that the set G = {a + b / a, b Q} is an infinite abelian group with respect to
addition.
52. Let G be the set of all rational numbers except 1 and * be defined on G by a * b = a + b – ab
for all a, b G. Show that (G, *) is an infinite abelian group.
53. Prove that the set of four functions f1, f2, f3, f4 on the set of non – zero complex numbers C –
{0} defined by
f1 (z) = z, f2(z) = - z, f3(z) =
and f4(z) = -
z C – {0} forms an abelian group with respect
to the composition of functions.
54. Show that (Zn , +n) forms group
55. Show that (Z7 – {[0]}, .7) forms a group.
56. Show that the nth roots of unity form an abelian group of finite order with usual
multiplication.
57. Show that set G of all positive rationals forms a group under the composition * defined by a
* b =
for all a, b G
58. Show that
where = 1,
1 form a group with respect to matrix multiplication.
59. Show that the set M of complex numbers z with the condition |z|=1 forms a group with
respect to the operation of multiplication of complex numbers.
60. Show that the set G of all rational numbers except – 1 forms an abelian group with respect
to the operation * given by a * b = a + b + ab for a, b G
61. Show that the set {[1], [3], [4], [5], [9]} forms an abelian group under multiplication modulo
11.
62. Show that the set of all matrices of the form
, a R – {0} forms an abelian group
under matrix multiplication.
63. Show that the set G = {2n / n Z} is an abelian group under multiplication.
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