3 (cos x)2 + 2 2(cot x)3 +4 cot x-5

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Q: 7. (sin x + cos x)² = 1 + 2 sin x cos x

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Q: Establish each identity.

A: To establish the identity, we need to prove that the left hand side is equal to the right hand side.…

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Q: 3. cos 6 = 17 tan 8 <0

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Q: cot(sin^-1(8/9)) Give exact answer

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A: NOTE-Since you have posted a question with multiple sub-parts, we will solve first three subparts…

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A: Solve the given identity

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Q: Establish each identity.

A: To establish the identity : tan θ - cot θtan θ + cot θ = 1 - 2cos2θ

Q: Establish each identity given in attachment.

A: Given equation: 1+cosθ+sinθ1+cosθ-sinθ=secθ+tanθ

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Q: 3 and sin x < 0. 5 Use the double-angle identities to find tan (2x) if cos x = Enter an exact…

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Q: sin(9z) – sin(5z) Simplify to an expression involving a single trigonometric function. cos(9z) +…

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A: Given:  sin145°cos(25°)-cos(145°)sin(25°)We know that  sin(A-B)=sinAcosB-cosAsinBby comparing we can…

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Q: Find the exact value using double angle identities. 7 and z <0 < - 13. Find sin20 if cose = - 2

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Q: tan (90° - x) = 9.3. What is cot (x)? %3D

A: Some trigonometric identities: sin(90-θ)=cos θ cos(90-θ)=sin θ

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A: Given identity is sinθ-cosθsinθ+cosθ-sinθcosθ=2-secθcosecθ.

Q: True or False: cos(sin 0) = 1 and sin(cos0) = %3D

A: I have shown that given result is False.

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A: Trigonometry Identities:                     An identity is an equation that is true for all…

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A: Question Number 8 Given expression sin θ - sec θcos θ - csc θ

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