Q. Find the derivative of the following function.y=e7x3Answer: y′=
Identify Functions: We are given the function y=e7x3. To find the derivative, we will use the chain rule, which 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.
Differentiate Outer Function: First, let's identify the outer function and the inner function. The outer function is eu, where u is the inner function. The inner function is 7x3.
Differentiate Inner Function: Now, we differentiate the outer function with respect to the inner function u. The derivative of eu with respect to u is eu.
Apply Chain Rule: Next, we differentiate the inner function 7x3 with respect to x. Using the power rule, the derivative of xn with respect to x is n∗xn−1, so the derivative of 7x3 is 3∗7∗x3−1 which simplifies to 21x2.
Final Derivative: Now we apply the chain rule by multiplying the derivative of the outer function by the derivative of the inner function. This gives us the derivative of y with respect to x as e7x3×21x2.
Final Derivative: Now we apply the chain rule by multiplying the derivative of the outer function by the derivative of the inner function. This gives us the derivative of y with respect to x as e(7x3)⋅21x2.Therefore, the derivative of the function y=e(7x3) is y′=21x2e(7x3).
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