div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=a-cos-520-sin-380-1-a-cosi-200-a-cos2-700-cos-350-sin-550-sin-350-20-tanhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · — cos 520 sin 380 1 — cosi 200 — cos2 700 cos 350 sin 550 + sin 350 20 tan 120 - cot 780 24 1 + tan250 — csc2 850 cos 550 25 28 COS 100 sin 800 cos 700 tan 200 — loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentssitereader030viewer20220407165e1f83aadc62612d2e2d208dhtml5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=a-cos-520-sin-380-1-a-cosi-200-a-cos2-700-cos-350-sin-550-sin-350-20-tanhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: · — cos 520 sin 380 1 — cosi 200 — cos2 700 cos 350 sin 550 + sin 350 20 tan 120 - cot 780 24 1 + tan250 — csc2 850 cos 550 25 28 COS 100 sin 800 cos 700 tan 200 — loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentssitereader030viewer20220407165e1f83aadc62612d2e2d208dhtml5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=a-cos-520-sin-380-1-a-cosi-200-a-cos2-700-cos-350-sin-550-sin-350-20-tanhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · — cos 520 sin 380 1 — cosi 200 — cos2 700 cos 350 sin 550 + sin 350 20 tan 120 - cot 780 24 1 + tan250 — csc2 850 cos 550 25 28 COS 100 sin 800 cos 700 tan 200 — loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentssitereader030viewer20220407165e1f83aadc62612d2e2d208dhtml5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=a-cos-520-sin-380-1-a-cosi-200-a-cos2-700-cos-350-sin-550-sin-350-20-tanhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: · — cos 520 sin 380 1 — cosi 200 — cos2 700 cos 350 sin 550 + sin 350 20 tan 120 - cot 780 24 1 + tan250 — csc2 850 cos 550 25 28 COS 100 sin 800 cos 700 tan 200 — loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentssitereader030viewer20220407165e1f83aadc62612d2e2d208dhtml5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=a-cos-520-sin-380-1-a-cosi-200-a-cos2-700-cos-350-sin-550-sin-350-20-tanhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: · — cos 520 sin 380 1 — cosi 200 — cos2 700 cos 350 sin 550 + sin 350 20 tan 120 - cot 780 24 1 + tan250 — csc2 850 cos 550 25 28 COS 100 sin 800 cos 700 tan 200 — loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentssitereader030viewer20220407165e1f83aadc62612d2e2d208dhtml5thumbnails5jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=a-cos-520-sin-380-1-a-cosi-200-a-cos2-700-cos-350-sin-550-sin-350-20-tanhtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: · — cos 520 sin 380 1 — cosi 200 — cos2 700 cos 350 sin 550 + sin 350 20 tan 120 - cot 780 24 1 + tan250 — csc2 850 cos 550 25 28 COS 100 sin 800 cos 700 tan 200 — loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentssitereader030viewer20220407165e1f83aadc62612d2e2d208dhtml5thumbnails6jpg width=140 height=200 divdiv