Test 4 - Test 4 Math 115-007 November 19, 2009 1. (18...

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Test 4 Name: ______________________ Math 115-007 November 19, 2009 1. (18 points) Given sin(θ) = 4 1 (with θ in Quadrant I), find the following using the appropriate double-angle or half-angle formula: cos( θ ) = cos( 2 ) = sin( 2 ) = sin( 2 ) = cos( 2 ) = tan( 2 ) = 2. (3 points each) Find the following trigonometric values using half-angle or sum- and difference-identities. a. sin( 8 π ) = b. tan( 12 7 ) = c. cos( o 175 ) = d. tan( o 15 ) = 3. (10 points each) Solve the following triangles.
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Test 4 Name: ______________________ Math 115-007 November 19, 2009 a = _______ α = 61° b = _______ β = 37° c = 13 γ = _______ a = 26 α = _______ b = 12 β = _______ c = 15 γ = _______
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Test 4 Name: ______________________
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Test 4 - Test 4 Math 115-007 November 19, 2009 1. (18...

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