Question

please solve this very important​

Answer 1

Step-by-step explanation:

cos A cot A / 1- sin A = 1+cosec A

TAKE,

LHS=cos A cot A /1- sin A

cos A = ( cos A/ sin A)

____________ [ as , cot A = cos A / sin A 1- sin A

cos square A/ sin A(1- sin A)

= (1- sin square A ) / sin A (1- sin A)

=(1- sin A) (1+ sin A ) / sin A (1- sin A)

after cancellation :

=1+ sinA/ sin A

=1/ sin A+ sinA/ sin A

= cosec +1

= RHS