cos e - sine Let A = sin e cos 0 cos 20 -sin 20 cos 20 (a) Show that A? sin 20

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A: We can prove or disprove trigonometric identities using trigonometric table values of angles . For…

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A: Simplification

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A: The students Aviva and Chris got incorrect solutions.

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A: I hope that it  will help you .Thankyou . Best regards.

Q: amplitude of 2 sin 4t + 3 cos 4t.

A: Given that 2sin4t+3cos4t. Approach: Let aa2+b2=siny and ba2+b2=cosy…

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A:

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A: To prove sinθ-sinθcosθcosθ-1-sin2θ=tanθ

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A: Question is based on trigonometric ratios and angels.

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A:

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A: We need to evaluate ∫sin 5t dt1+cos 5t                                    (1) Let  1+cos 5t = u On…

Q: sin 67 = cos a a = type your answer...

A:

Q: Precal -   prove true or false  cos(theta-9pi/2) = sin (theta)

A:

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A: The given expression is

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A: follow next step

Q: Cos 0–N1+ Sin 20 Tan 0 Sin 0 –/1 + Sin 20 N.

A: Recall: sin (2θ)= 2 sinθ cosθ sinθ cosθ= tanθ cos2θ+sin2θ=1

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A: We have to find the value of: sin tan-1 38

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A:

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A: Consider  sin2θcosθ=secθ-cosθ

Q: cosA+sina 5. Prove that tan +A) = cosA-sina

A: Answer

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A: cos(θ)=5 sin(θ)=16

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A: The answer is given below Explanation:

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A:

Q: sin 50 Show that 16 cos 0 – 12 cos² 0 + 1. sin 0

A: given,

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A: ∫cotθsin2θ dθ On simplification, we get ∫cotθsin2θ dθ=∫cotθ csc2θ dθ    ∵cscx=1sinx Now put,…

Q: sin²A = 1 - cos²A cos²A - 1 1 + cos²A

A: sin2A