Question

tg(альфа+7П)-cos(2альфа+П/2),sin=0,6

Answer 1

tg(альфа+7П)-cos(2альфа+П/2),sin=0,6

tg a-(-sin 2a)=tg a+sin 2a=sin a/ cos a+2 sin a* cos a

sin a=0.6

cos a =sqrt(1- 0.36)=sqrt(0.64) = 0.8

0.6/0.8+2*0.6*0.8=0.75+0.96=1.71