Show that sin³ +cos³0 sin + cos 2-sin 20 2

Q: sin sin sin sin ¹0+ cos -¹³)-0

A: I am going to solve the problem by using some simple calculus to get the required result of the…

Q: Find all solutions to 10 cos2 r-13 cos T = -4 sec2 r+4 tan? r on 0, 27.

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

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Q: VERIFY THE IDENTITIES

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Q: 2-sec2x: COS2X = COS X

A: Given query is to verify the identity

Q: cos49-sin*0 2. = 1– tan20 cos²0

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Q: 1. Prove cos 8-sin 8 cos 8 + sin e = sec 28 tan 20.

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Q: 2. Prove the identity 2 cos²x 1-cos²x 2 tan² x

A: We will use the following identities,  and  We are asked to prove,

Q: Find cos 20 if sin 0 = cos 20

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Q: Prove that 1-cos2x+sin2x 1+cos2x+sin2x = tan x

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Q: Prove that sin? 0 + cosª 0 = sin“ 0 + cos² 0.

A: Using fundamental identity of trigonometry.