div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentteachingbd24-sin-a-cos-a-i-sin-a-cos-a-sin-a-cos-a-sin-a-coseca-seca-htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Teachingbd24sin A cos A I sin A cos A sin A cos A sin A cosecA secA + I = secAcosecA + I cos A 4 Ans 16xy — 16xy —V sec tan cos 9 — cot cote = — tan9 tan9 cose loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220130116119ed749e36c015a772f093html5thumbnails1jpg width=140 height=200 divphttps:teachingbd24comp pTeachp pingbd24p pcomp div class=annotationa href=https:teachingbd24com rel=ugc nofollow target=_blankhttps:teachingbd24comadiv div class=annotationa href=https:teachingbd24com rel=ugc nofollow target=_blankhttps:teachingbd24comadivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentteachingbd24-sin-a-cos-a-i-sin-a-cos-a-sin-a-cos-a-sin-a-coseca-seca-htmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Teachingbd24sin A cos A I sin A cos A sin A cos A sin A cosecA secA + I = secAcosecA + I cos A 4 Ans 16xy — 16xy —V sec tan cos 9 — cot cote = — tan9 tan9 cose loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220130116119ed749e36c015a772f093html5thumbnails2jpg width=140 height=200 divphttps:teachingbd24comp pTeachp pingbd24p pcomp div class=annotationa href=https:teachingbd24com rel=ugc nofollow target=_blankhttps:teachingbd24comadiv div class=annotationa href=https:teachingbd24com rel=ugc nofollow target=_blankhttps:teachingbd24comadivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg...