For Excrcises 9–12, solve the cquation over the interval [0, 27). V3 V3 b. cosa = 9. a. sin 0 2 b. sin 0 10. a. cosa = 2 V3 b. cotß : 3 V3 11. a. cotß = 12. a. tanx = 1 b. tanx = 3

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A: Formula Used: We will need following binomial expansion:

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A: If, X=B1sinωt and Y=B2sinωt-θ, then, it can be said that Y lags X by an angle θ .

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A: The solution is given below in the next step:

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A: consider I=∫cosθθ sin2θdθto solve the itegral we can use method ofsubstitution

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A: Evaluation of the definite Integral

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A: To find tan(s+t).The formula for find  tan(s+t).

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Q: HW /Prove that: (1) tanx=cot

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A: We can answer first question among which you asked as per the honor policy. please resubmit the…

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