Complete the sentence so the result is an identity. Let x be any real number.
-Find $\sin ( s + t )$ given that $\cos s = - \frac { 12 } { 13 }$, with $s$ in quadrant II, and $\sin t = \frac { 8 } { 17 }$, with $t$ in quadrant II.
A) $\frac { 171 } { 221 }$
B) $- \frac { 171 } { 221 }$
C)----
D) $- \frac { 21 } { 221 }$

Question

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The Answer of Complete the sentence so the result is an identity. Let x be any real number.
-Find $\sin ( s + t )$ given that $\cos s = - \frac { 12 } { 13 }$, with $s$ in quadrant II, and $\sin t = \frac { 8 } { 17 }$, with $t$ in quadrant II.
A) $\frac { 171 } { 221 }$
B) $- \frac { 171 } { 221 }$
C)----
D) $- \frac { 21 } { 221 }$

Complete the Sentence So the Result Is an Identity sin⁡(s+t)\sin ( s + t )sin(s+t)

Complete the Sentence So the Result Is an Identity $\sin ( s + t )$