Question

Value of (Cos A+ Cos B / Sin A- Sin B ) ^n + (Sin A + Sin B / CosA- Cos B ) ^n where n is odd

Answer 1

Answer:

0

Step-by-step explanation:

(Cos A+ Cos B / Sin A- Sin B ) ^n + (Sin A + Sin B / CosA- Cos B ) ^n

= cot^n(A+B)/2 -  cot^n(A+B)/2 = 0