Question

Prove the following :-
(i) (sec A + tan A) (1 - sin A) = cos A
​

Answer 1

Answer:

hope it helps

Step-by-step explanation:

mark it brainliast plz

Answer 2

Step-by-step explanation:

LHS => (secA+tanA)(1−sinA)

=( 1 / cosA + sin A /cos A ) (1−sinA)

=( 1+sinA /cos A) (1−sinA)

= (1+sinA)(1−sinA) / cos A

= (1−sin² A) / cos A

= cos² A / cos A => cos A

∴(secA+ tanA) (1− sinA) => cosA