`y = cos(a^3 + x^3)` Find the derivative of the function.

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gsenviro | College Teacher | (Level 1) Educator Emeritus

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`y' = d/dx cos(a^3 +x^3)`

`= -sin (a^3+x^3) *d/dx(x^3)`

`= -3x^2 sin(a^3+x^3)`

``Hope this helps.