Question

what is cosθ.sinθ+sinθ.cosθ ​

Answer 1

AB / AC .BC/AC + BC/AC.AB/AC

Answer 2

Ans:- (sin2∅)

Given,

sin∅.cos∅ + cos∅.-sin∅

=cos∅.sin∅ + cos∅ .sin∅

= 2sin∅.cos∅

= sin2∅