Question

find the value of (1-cos theta) (1+cos theta) (1+cos square theta)​

Answer 1

Step-by-step explanation:

(1-cosA)(1+CosA)(1+cos^2A)

(1-cos^2A)(1+cos^2A)

(sin^2A)(-sin^2A)

-sin^4A

Answer 2

Answer:

answer is sin^(4)θ

Step-by-step explanation:

(1-cosθ)×(1+cosθ)=1-cos²θ

(1-cos²θ )×(1+cosθ² )=1-cos^(4)θ

=sin^(4)θ