Q2\ Prove the following identities sin 20+cos 20+1 a) = cote sin 20-cos 20+1

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

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Q: 2. Prove each identity. a) sin x cos x tan x = 1 - cos²x b) tan²x sin²x = tan²x – sin²x

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Q: sec 0 – cos 0 = sin 0 tan 0

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Q: sin x + 1+ COS X 1+ cOS X = 2 csc X sin x

A: Given,          1+cosxsinx+sinx1+cosx=2cscx

Q: Cos ax COs ax Q: Prove that dx = ze", a 2 0.(or) Evaluate x² +1 x² +1

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Q: Establish the identity 2 2 cos - sin 0 2, 1 - tan 0 2 = cos 0.

A: To establish the identity

Q: (sinx/ 1-cosx)=cscx + cotx   verify the identity

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Q: Verify identity cos2 x - sin2 x = 1 - 2 sin2 x.

A: The given trigonometric equation (identity) is: cos2x-sin2x=1-2sin2 x To verify this, take the left…

Q: By equating the real parts of cos5θ + j sin5θ = (cosθ + j sinθ)5 Show that cos5θ = 16cos5θ -…

A: Given By equating the real parts of cos5θ + j sin5θ = (cosθ + j sinθ)5

Q: Prove Sine tan 2. 1+ cose

A: Using the double angle identities we get

Q: Prove the identity Sinx/1-cosx=secx+1/tanx

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