Q. Find the derivative of the following function.y=e−3x5−6x4Answer: y′=
Identify Function: Identify the function to differentiate.We have y=e(−3x5−6x4). This is an exponential function with a composite exponent.
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.Let u(x)=−3x5−6x4, then y=eu(x).
Differentiate Outer Function: Differentiate the outer function with respect to u. The outer function is eu, and its derivative with respect to u is eu. dudy=eu
Differentiate Inner Function: Differentiate the inner function u(x) with respect to x. u(x)=−3x5−6x4 u′(x)=dxd(−3x5)+dxd(−6x4) u′(x)=−15x4−24x3
Apply Chain Rule: Apply the chain rule to find the derivative of y with respect to x.y′=dudy⋅dxduy′=e(−3x5−6x4)⋅(−15x4−24x3)
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