div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: answers trig identitiesaschademathweeblycomuploads991999194954answers_trig_identitiespdfsin 4 x — cos4 x = sin2 x — cos 1 +cosx 17 = cscx + cotx sinx -l x sinx +cosx src=https:reader036vdocumentinreader036viewer2022081403608875097ace8720be5141d3html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: answers trig identitiesaschademathweeblycomuploads991999194954answers_trig_identitiespdfsin 4 x — cos4 x = sin2 x — cos 1 +cosx 17 = cscx + cotx sinx -l x sinx +cosx src=https:reader036vdocumentinreader036viewer2022081403608875097ace8720be5141d3html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv