Find the Exact Value Of $\cos ( u + v )$

question 13

Multiple Choice

Find the exact value of $\cos ( u + v )$ given that $\sin u = \frac { 8 } { 17 }$ and $\cos v = - \frac { 60 } { 61 }$ .(Both u and v are in Quadrant II. )

• A) \(\cos ( u + v ) = \frac { 812 } { 1037 }\)
• B) \(\cos ( u + v ) = - \frac { 300 } { 1037 }\)
• C) \(\cos ( u + v ) = - \frac { 804 } { 1037 }\)
• D) \(\cos ( u + v ) = \frac { 315 } { 1037 }\)
• E) \(\cos ( u + v ) = \frac { 645 } { 1037 }\)

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