Question

Prove the following Identities.
1. (1-сos E)(1+cos 6 )(1+cot? 4 )=1​

Answer 1

Answer:

thank you for your free points

Answer 2

Answer:

Working with the left hand side

(1+cosx)+(1−cosx)/(1−cos)(1+cosx)

1+cosx+1−cosx1−cos

2x2sin2x2csc2xwhich is equal to the right hand side