10. If cose = /3 sin 0 then the exact value of tan 20 is: A. -V3 В. 23 1 С. D. 3

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A: see below the answer As per bertleby guideline I have to solve only first question. So repost the…

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A: Given,            cosπ2+xcosπ+x=tanxTo find : Prove the identity.

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A: Explanation of the answer is as follows

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A: Explanation of the answer is as follows

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A: Solving

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A: Given query is to find the solution of the trigonometric expression.

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A: We have to use simple trigonometric identities to solve the question

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A: I am attaching image so that you understand each and every step.

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A: Option (A) is correct See below the explanation

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A: 2cosθ +3 = 0 2cosθ = -3  cosθ = -3 /2 θ = cos-(-3 /2) θ = (2k+1)π + π/6

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A: To prove the following identity .

Q: 5. 2.

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