Question

Please solve this Immediately..!!

Answer 1

Step-by-step explanation:

Use trigonometric identity

sin^2x = 1 - cos^2x

L.H.S

( 1+ cosx - sin^2x)/sinx(1+cosx)

= [1+cosx -(1-cos^2x)]/sinx(1+cosx)

= cosx(1+ cosx)/sinx (1 + cosx)

= cosx/ sinx = cotx R.H.S

hence, proved

Answer 2

Answer:

Proved .

Step-by-step explanation:

Hope it helps .