Trigonometry
Find the exact value of sin(x+y)\sin\left(x+y\right)sin(x+y). Use a trigonometric identity.
cosx=−112113\cos x=-\frac{112}{113}cosx=−113112, siny=8485\sin y=\frac{84}{85}siny=8584, xxx in quadrant II and yyy in quadrant I
−11049605-\frac{1104}{9605}−96051104
−92139605-\frac{9213}{9605}−96059213
14169605\frac{1416}{9605}96051416
12039605\frac{1203}{9605}96051203