Question

9. (sec A+tan A)(1 - sin A) = ...
(A) sin A (B) cos A (C) sec A
(D) cot A​

Answer 1

Answer:

(B) cos A

For steps please refer the above attachment.

Hope this will be useful

Thank You!

Answer 2

b) cos A

( sec A + tan A)

so 1- sin A is cos A

because cos A × sec A =1

or

sec A=1/ cos A