What is the value of (1+sinθ)(1−sinθ)(1+cosθ)(1−cosθ) when tan

1.	What is the value of (1+sinθ)(1−sinθ)(1+cosθ)(1−cosθ) when tanθ=43.
Answer» What is the value of $\frac{(1 + sin θ) (1 - sin θ)}{(1 + cos θ) (1 - cos θ)}$ when $tan θ = \frac{4}{3}$ .

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