Question

prove that:(sec A+tan A) (1-sin A)=cos A​

Answer 1

Answer:

PLEASE SAY HOW IT WAS??

Answer 2

Answer:

Step-by-step explanation:

By splitting sec A and tan A in terms of sin and cos, we get

(1/cosA+sinA/cosA)(1-sin A)

({1+sinA}/cosA)(1-sinA)

(1-sin^2A)/cosA

cos^2A/cosA

cos A (proved)