Question

(1+tan²Q)(1+sinQ)(1- sin Q)=1 prove that

Answer 1

(1+tan²Q)(1-sin²Q)

We know that (1+tan²Q)=sec²Q=1/cos²Q

And also 1-sin²Q=cos²Q

So,

1/cos²Q × cos²Q =1

Hence proved

Answer 2

YOUR ANSWER IS IN THE ATTACHMENT

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