sin can be expanded to: sin 4 COS 2 cos - sin sin 2 O sin 4 sin -cos - + cos –sin 2 4 2 O sin + sin 4 2 cos - COS sin -sin sin 4 2

Q: Find and explain  the errors that have been made

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Q: 1-2sin? x 2. Prove cos x+ sin x +2sin cos-= cos x 2

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Q: Prove cos - sine cos + sin sec 28-tan 20.

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Q: Express as a product. sin 4ẞ + sin 10ẞ + sin 22ẞ + sin 16ẞ

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Q: Evaluate S cos ve Vē sin? ve

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

Q: Statement cotx (sec²x - 1) = = = cosx -(sec²x - 1) sinx cosx sinx cosx sinx sinx COS.X = tant…

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Q: Verify the identity. (sec ² 0+1) (- sin² 0+1) = 2-sin ²0 20 rch Which of the following four…

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Q: Cosx 1+sinx 11. 1+sinx 2secx Cosx

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Q: 2 cos Ca) sin Ca) da J z sin(a) cos"(a)

A: Hey, since there are multiple questions posted, we will answer one question. If you want any…

Q: Use the figure to derive the formulas for sin COS and tan 2 sin (9) - COS tan (9) - 12 cos Ꮎ Ꮎ sin 0…

A: First, let us consider △ABC :Find its hypotenuse using the Pythagorean Theorem.AB2+BC2=AC2Substitute…

Q: verify the identity seco+1 2 COS 2 - 2 sec 0

A: Verify the identity: cos2θ2=secθ+12secθ

Q: Verify the identity. cos 7x- cos 9x tan 8x sin 7x- sin 9x Statomont

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Q: 1 minus the fraction of cos squared theta/ 1 plus sin of theta

A: Use Pythagorean identity sin^2 theta + cos^2 theta=1  This gives, cos^2 theta = 1 - sin^2 theta

Q: Use the figure to derive the formulas for sin cos and tan sin -- COS Cos e sin 0 1- cos 0 2 Great…

A: You just need to use the 2 equation. Sin(0/2)/cos(0/2)0 is supposed to be theta