div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails5jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails6jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imageimg 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src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails8jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imageimg data-url=sina-sin3a-cos2a-prove-that-cos6a-4cos4a-8cos2a-4-sina-cosa-prove-thathtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: · If sinA + sin3A cos2A prove that cos6A — 4cos4A + 8cos2A 4 sinA cosA Prove that e90f11 1 -- cosA sinA cosA 1 + sinA 1 + sinA cosA 4 cosecA 30 31 -inA cosA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentscombrreader034viewer20220507205adb623f7f8b9a6d7e8de4f3html5thumbnails9jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=10Page 10button div class=ts-imageimg 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