Quiz 7 - Quiz 7 Math 115-007 November 5, 2009 1. (12...

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Quiz 7 Name: ______________________ Math 115-007 November 5, 2009 1. (12 points) Given cos(θ) = 3 1 (with θ in Quadrant I), find the following using the appropriate double-angle or half-angle formula: sin( θ ) = cos( 2 ) = sin( 2 ) = cos( 2 ) = tan( 2 ) = sin( 2 ) = 2. (2 points each) Find the following trigonometric values using half-angle or sum- and difference-identities.
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