Prove each of the following identities. (a) cosec 2x + cot 2x cosec 2x 7. - cosec x %3D 1+ cos x + cos 2x (b) = cot x sin x + sin 2x k) sin' x + cos'x = (sin x + cos x) 1- sin 2.x Sth sin ' 플 = tan x- sin x 2 2 tan x

Q: sin? x 1- 1-cos x =-COS X

A: Here we have to use the basic trigonometric identity sin2θ+cos2θ =1 and we know that  a2-b2=…

Q: Sinx=1/2 Cos2x=

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Q: 2. sin 2x 1 - sin² x = 2 tan x

A: Aim: To show that sin(2x)1-sin2(x)=2tan(x)

Q: cos x- sin dx 1- sin 2x

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Q: Cos 2x cos X-sin 2x sin x=radical 3/2. Use 0

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Q: cos X y = sin x +cosX

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Q: if Sec X = 2 then tanx +Cos X =

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Q: sin(tan x) cos²x Evaluate ·[³ dx.

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Q: VERIFY THE IDENTITY

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Q: 1– cos(x) y = = csc(x) – cot(x) sin(x)

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Q: 1. sin x csc x 5. cos x (tan x + 1)

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Q: If cos x = sin 2x cos 2x tan 2x 4 csc x < 0, then ;

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Q: to 11. If sin 18 0.309, determine the value of cos 72.

A: Answering question number 11 since 10th is already been correctly solved.