please it's very urgent
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Answer:
Answer:
-3
Step-by-step explanation:
y=sin-1(cos 3x)dy/dx=2
y=sin-1(cos 3x)
y=sin-1[sin(π/2-3x)]. sin theata=cos(π/2-theta
y=π/2-3x. ) cos theta=sin(π/2-thea
dy/dx=0-3*1. ta)
dy/dx=-3