Use the given information to find the exact value of a. sin2θ​, b. cos2θ​, and c. tan2θ. cos θ =(21)/(29), θ lies in quadrant IV a. sin 2θ​ = ___ (Write an integer or a fraction. Simplify your​ answer.) b. cos 2θ = ____ (Write an integer or a fraction. Simplify your​ answer.) ​ c. tan 2θ = ____ (Write an integer or a fraction. Simplify your​ answer.)

Algebra and Trigonometry (MindTap Course List)
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Author:James Stewart, Lothar Redlin, Saleem Watson
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Chapter5: Trigonometric Functions: Right Triangle Approach
Section5.1: Angle Measure
Problem 1E: a The radian measure of an angle is the length of the __________ that subtends the angle in a...
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Use the given information to find the exact value of a. sin2θ​, b. cos2θ​, and c. tan2θ.

cos θ =(21)/(29), θ lies in quadrant IV

a. sin 2θ​ = ___ (Write an integer or a fraction. Simplify your​ answer.)

b. cos 2θ = ____ (Write an integer or a fraction. Simplify your​ answer.)

c. tan 2θ = ____ (Write an integer or a fraction. Simplify your​ answer.)

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