Mathematics II Trigonometric Functions

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Trigonometric Functions

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Prove and apply trigonometric identities.
8. Prove the Pythagorean identity sin2(θ ) + cos2(θ ) = 1 and use it to find sin(θ ), cos(θ ), or tan(θ ) given sin(θ ), cos(θ ),
or tan(θ ) and the quadrant.
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