Q. Find the derivative of the following function.y=e−6x3+5x2Answer: y′=
Identify function: Identify the function to differentiate.y=e−6x3+5x2We need to find the derivative of y with respect to x, denoted as y′.
Apply chain rule: Apply the chain rule for differentiation.The chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function.In this case, the outer function is eu and the inner function is u=−6x3+5x2.
Differentiate outer function: Differentiate the outer function with respect to the inner function u. If y=eu, then the derivative of y with respect to u is dudy=eu.
Differentiate inner function: Differentiate the inner function u with respect to x. u=−6x3+5x2 The derivative of u with respect to x is dxdu=dxd(−6x3)+dxd(5x2) dxdu=−18x2+10x
Apply chain rule: Apply the chain rule by multiplying the derivatives from Step 3 and Step 4.y′=dudy⋅dxduy′=e(−6x3+5x2)⋅(−18x2+10x)
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