please answer this question:
Q. cos(θ) + cos(-θ)/ tanθ + cotθ
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Step-by-step explanation:
cos(theta)+cos(-theta)/tan(theta)+cot(theta)
= cos(theta)+cos(theta)/tan(theta)+1/tan(theta)
= 2cos(theta)/tan^2(theta)+1/tan(theta)
=2cos(theta) tan(theta)/sec^2(theta)
= 2sin(theta)/sec^2(theta)
because cos (x) = cos(-x)
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