If tan B= cot P tan A, then cot2(P/2) is equal to(a) sin(A+B) / sin (A-B) (B) sin(A-B) / sin (A+B) (c) cos(A+B) / cos (A-B) (D) cos(A-B) / cos (A+B)Explain pls how???

Aditi Bhatnagar , 12 Years ago

Grade 12th Pass