Question

1+ cosec A / cosec A = cos^2 A / 1- sin A​

Answer 1

Step-by-step explanation:

1+cosec A)/ cosecA = cos2A/( sinA-1)

LHS:

(1+cosecA)/cosec A

= (1/cosecA) + (cosecA/cosecA)

= sinA+1

=sinA+1 X (1-sinA/1-sinA)

=sin2A-1/1-sinA

=cos2A/1-sinA

=RHS.

HOPE IT HELPED YOU...    ;)