mandeep7 mandeep7 Today at 7:22 AM Mathematics Answered 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.