Question

Prove : (1 + tanề0) (1 + sin 0) (1 – sin e) = 1.
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Answer 1

Answer:

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Step-by-step explanation:

 (1+tan^2theta) ( 1+ sin theta) ( 1- sin theta)

( 1 + tan^2 theta) ( 1- sin^2 theta)

Sec^2 theta( 1- sin^2 theta)

1/cos^2 theta ( 1- sin^2 theta)

1/cos^2 theta- sin^2 theta/cos^ theta

1-sin^2 theta/cos^2 theta

1-sin^2 theta/1-sin^2 theta = 1