Q. Find the derivative of the following function.y=e2x4Answer: y′=
Identify Function: Identify the function and its components.The function y=e2x4 is an exponential function where the exponent is a function of x itself, namely 2x4.
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=2x4.
Differentiate Outer Function: Differentiate the outer function with respect to the inner function u. The derivative of eu with respect to u is eu. So, (d/du)(eu)=eu.
Differentiate Inner Function: Differentiate the inner function u=2x4 with respect to x. Using the power rule, the derivative of 2x4 with respect to x is 8x3. So, (d/dx)(2x4)=8x3.
Apply Chain Rule: Apply the chain rule using the derivatives from steps 3 and 4.The derivative of y with respect to x is the derivative of the outer function evaluated at the inner function times the derivative of the inner function. Therefore, y′=e2x4×8x3.
Simplify Derivative: Simplify the expression for the derivative. y′=8x3⋅e2x4.
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