Question

prove that (sec square theta + tanA)(1-sinA)=cosA​

Answer 1

Step-by-step explanation:

l hope this helps you

I had use the formula given below:-

sin²theta +cos²theta=1

Answer 2

Answer:

sorry i couldn't understand ur answer can u please answer again

Step-by-step explanation:

(sec A+tan A)(1-sinA)

=(1/cos A + sin A/cos A)(1-sinA)

=[(1+sinA)/cosA](1-sinA)

=(1+sinA)(1-sinA)/cosA

=(1-sin^2 A)/cosA

=(cos^2 A)/cos A

=cos A

Hence proved