Question: Help please 4. [-/1.11 Points] DETAILS If a and p are acute angles such that cos a = 8 17 and tan B = -,

Help please

4. [-/1.11 Points] DETAILS If a and p are acute angles such that cos a = 8 17 and tan B = -, 3, find the following. (a) sin(a + B) (b ) cos(a + B) (c) the quadrant containing a + O Quadrant I O Quadrant II O Quadrant III O Quadrant IV Need Help? Read It 5. [-/1.11 Points] DETAILS Determine if the identity is correct. cos(u + v) + cos(u - v) = -2 cos u cos v O Yes O No Need Help? Read It

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