Question

(1+tan²theta)(1+sin theta)(1- sin theta)=1​

Answer 1

Answer:

+tan

2

θ)(1−sinθ)(1+sinθ)

=(sec

2

θ)(1−sin

2

θ)

=(sec

2

θ)(cos

2

θ)

=(sec

2

θ)(

sec

2

θ

1

)

=1

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Answer 2

Answer:

(1+tan 2θ)(1−sinθ)(1+sinθ)

=(sec 2θ)(1−sin 2 θ)

=(sec 2 θ)(cos 2θ)

=(sec 2 θ)( sec 2θ1 )

=1