Question

Simplify: (sin Θ − cos Θ)2 + (sin Θ + cos Θ)2

Answer 1

@Nurali

Answer 2

@suyogsomavanshi

Answer 3

(sinθ+cosθ)²+(sinθ-cosθ)²=0
(sin²θ + 2sinθcosθ + cos²θ)+(sin²θ - 2sinθcosθ + cos²θ)=0
(sin²θ+ cos²θ) + 2sinθcosθ - 2sinθcosθ +(sin²θ+ cos²θ)=0
1 + 0 +1=0
2≠0
no solutions