Q. Find the derivative of the following function.y=e−x3Answer: y′=
Identify Function Components: Identify the function and its components for differentiation.The function y=e−x3 can be seen as an outer function eu where u=−x3.
Derivative of Outer Function: Determine the derivative of the outer function with respect to u, where u=−x3.The derivative of eu with respect to u is eu.So, (d/du)(eu)=eu.
Derivative of Inner Function: Find the derivative of the inner function u with respect to x, where u=−x3. The derivative of −x3 with respect to x is −3x2. So, (dxd)(−x3)=−3x2.
Apply Chain Rule: Apply the chain rule to differentiate the composite function y=e−x3.The chain rule states that dxdy=dudy⋅dxdu.We have dudy=eu and dxdu=−3x2.Therefore, dxdy=eu⋅(−3x2).
Substitute and Simplify: Substitute u back into the derivative to get the final answer.Since u=−x3, we replace u with −x3 in the derivative.So, dxdy=e−x3⋅(−3x2).
Substitute and Simplify: Substitute u back into the derivative to get the final answer.Since u=−x3, we replace u with −x3 in the derivative.So, dxdy=e−x3⋅(−3x2). Simplify the expression to get the final derivative.y′=−3x2⋅e−x3.This is the derivative of the function y=e−x3.
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