Simplify: sin inverse (5/13 cos x + 12/13 sin x). Share with your friends Share 10 Varun.Rawat answered this Let y = sin-1513 cos x + 1213 sin xLet 513= sin α ⇒ cos α = 1-sin2α = 1 - 25169 = 144169 = 1213Now, y = sin-1sin α . cos x + cos α . sin x⇒y = sin-1sin α+x⇒y = α+x⇒y = sin-1513 + x Simplified form 16 View Full Answer