Question

Prove that :

1 + ( cosec A . tan B )^2/ 1 + ( cosec C . tan B )^2 = 1 + ( cot A . sin B )^2/ 1 + ( cot C . sin B )^2

*I am in hurry so plz slove this fast.​

Answer 1

If cosec A=2 then find the value of 1/tanA +sin A/ 1+cos A