Report copyright - ˘ˇ نﺈﻓّ - dzeduc.net · 42cos cos2 i 2 1 sin cos i و 1 sin cos i :ﺎﻤﻫ نﻼﺤﻟا 0 .25 0.50 0.75 :نأ نﻴﻴﺒﺘّ (2 2017 2017.zz 12 1 0.50 0 50 . ency-educatio:ﺎﻤﻬﻌطﺎﻘﺘ
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