Question

sin^2+2.sin.cos+cos^2​

Answer 1

Answer:

there must be some value given check the question properly!!

Answer 2

(a+b)^2 = a^2 + 2ab + b^2

If a = sin x

b = cos x

Therefore,

sinx^2 + 2sinx.cosx. + cosx^2

= (sinx + cosx)^2

Hope this helps :)