Question

(sin 0 + cos 0)2 + (sin 0 - cos 0)?​

Answer 1

Answer:

(sinθ−cosθ)2+(8nθ+cosθ)2

(sinθ−cosθ)(sinθ+cosθ)=(1−sin2θ)+(1+sin2θ)=sin2θ−cos2θ

=2sin2θ−1+sin2θ=22sin2θ−1