Question

Simplify (1 - cos 0) (1 +cose) (1 + cot^2o)​

Answer 1

(1−cosθ)(1+cosθ)(1+cot 2θ)

=[(1−cosθ)(1+cosθ)(1+cot 2θ)]=(1−cos 2 θ)(1+cot 2 θ)

=sin 2 θ.cosec 2 θ=sin 2 θ⋅

sin 2 θ1 =1

hope it helps ☺️

Answer 2

♛♥༻✧Answer✧༺♥♛

Equation =

= (1+cosA) (1-cosA)(1+cot²A)

= (1-cos²A) (1+cot²A)

= sin²A cosec²A

= (sin²A) (1/sin²A)

=1