Question

Prove that sec A (1 – sin A)(sec A + tan A) = 1

Class 10 - Trigonometric Identities​

Answer 1

Step-by-step explanation:

This is the answer

Hope it helps you

Answer 2

Answer:

secA(1-sinA)(secA+tanA)

=secA-1bycosA.secA(secA+tanA)

=secA+tanA)(secA-tanA)

=sec^2A-tan^2A

=1

formula used

secA=1/cosA

tanA=sinA\cosA