Find the sin & Cos of O-180,-90,-45,45, 135) degree 0(-135, 0, 4o, 180) radian-

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A: To find the value of tan (60) degree.

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A: To explain the given problem

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Q: Sin 3theta = Please step and tell her you got them

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Q: Compute the exact value of sin() (7. 8

A: To find:sin7π8

Q: sin x sin y =

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Q: cos 60 (degrees)-sin 45 (degrees)=

A: The question is  cos 60°-sin 45°=??

Q: evaluate cos-1(cos(80 degrees))=

A: The objective of the question is to evaluate the expression cos^-1(cos(80 degrees)).

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Q: sin 67 = cos a a = type your answer...

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Q: Determine if true sin 60°cos 45° +cos 60° sin 45° = sin 105

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Q: cos(-140°) = -cos40° cos40° cos(-40°)

A:

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.