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suresh
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Homework Statement
Let f(θ)=cotθ/1+cotθ and α+β=5π/4
then the value of f(α).f(β) is:
The Attempt at a Solution
f(α)f(β)=
(cotα/1+cotα)* (cotβ/1+cotβ)
= cotα.cotβ/((1+cotα)(1+cotβ))
=cotα.cotβ/(1+cotβ+cotα+cotα.cotβ)
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