Question

) Prove that (1 + cos 0) (1 - cos 0) (1 + cot? e) = 1​

Answer 1

Answer:

(1+cos 0)(1-cos 0)(1+cot ^2 0)

=(1- cos^2 0)(cosec^2 0)

=sin^2 0.(1/sin^2 0)

=1