Question

(secA + tanA) (1-sinA) ​

Answer 1

Answer:

cosA

Step-by-step explanation:

(secA + tanA)(1-sinA)

=secA - secA*sinA + tanA - tanA*sinA

=secA - sinA/cosA + tanA - sinA*sinA/cosA

=secA - tanA + tanA - sin^2A/cosA

=1/cosA - sin^2A/cosA

=1 - sin^2A/cosA

=cos^2A/cosA

=cosA

Hopefully I think this will help you.