Question

cosec^2 @+ 2 cot@ = ????​

Answer 1

Answer:

Cosecx-cotx=2……………………(1)

(cosecx-cotx)×(cosecx+cotx)/(cosecx+cotx)=2

(cosec^2x-cot^2x)/(cosecx+cotx)=2

1/(cosecx+cotx)=2

cosecx+cotx=1/2……………………..(2)

On adding eq.(1) & (2)

2cosecx=5/2

cosecx=5/4 , Answer

Hope it helps thanks