Find the quotient when 20(cos 75 degree + i sin 75 degree ) is di vided by4(cos 40 degree + i sin 40 degree).

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A: We have to calculate the value of sin(2i)

Q: Verify the identity: (cos 4x - cos 2x)/(sin 2x - sin 4x) = tan 3x

A:

Q: simplify sin(180degrees-x)   A.cosx B.sinx C.-sinx D.-cosx

A:

Q: Calculate sin(-308°)

A:

Q: Is sin2(0+1) zero or one?  Please explain

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Q: Verify: cos(A + B) + cos(A – B) = 2 cos A cos B. To receive full credit, show all steps. Edit Viou

A:

Q: 9. Verify (working on one side): CScx = COSX tanx+cotx

A:

Q: Explain how to find the value of cos( - 45°) using even–odd properties.

A: We have to find the value of cos( - 45°).

Q: Find given - cosx sinz

A:

Q: Use basic identities to simplify cos3x+sin2xcosx.   can you explain this equation and the answer

A:

Q: Prove cos4x=8cos4x-8cos2x+1

A: To prove:- cos(4x)=8cos4(x)-8 cos2(x)+1

Q: Evaluate arctan(tan √3) exactly.

A: use identity

Q: cos4t - sin4t/sin2t=cot2t-1 *Prove left side equals the right side using steps and reasoning.

A: Given query is to pove the identity.

Q: Sin (12) २ गठ }}

A: Given expression is sin-1-22   Applying the property of inverse trigonometric functions:…

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.