If sin(x) = cos(y) = 1/3 and x, y are acute, then find sin(x + y).
= sinx cosy + cosxsiny
1/3 * 1/3 + sqrt8/3 * sqrt8/3 = 1/9 + 8/9 = 1
Guess I could further say that if sinx = cosy the angles are compimentary and add to 90o sin (90) = 1
+36916 
