Question

Prove that ....☝️☝️☝️​

Answer 1

Step-by-step explanation:

(1+cos theta)(1-cos theta)=1/cosec^2 theta

1-cos^2 theta=1/cosec^2 theta

sin^2 theta=1/cosec^2 theta

1/cosec^2 theta=1/cosec^2 theta

Answer 2

Answer:

Here's your answer

Step-by-step explanation:

by opening the brackets you will get (1 - cos^2)

applying the identity, (1 - cos^2) = sin^2

then you can write it as 1/(cosec^2 theta)

Hope you mark it as brainliest