Q. Find the derivative of the following function.y=76x6−5x5Answer: y′=
Identify function components: Identify the function and its components.The function is y=76x6−5x5, which is an exponential function with a base of 7 and an exponent of 6x6−5x5.
Use chain rule for differentiation: Recognize that to differentiate y=76x6−5x5, we need to use the chain rule for exponential functions.The chain rule states that the derivative of au, where a is a constant and u is a function of x, is au⋅ln(a)⋅u′.
Differentiate exponent function: Differentiate the exponent function u(x)=6x6−5x5. To find u′(x), we apply the power rule to each term. u′(x)=dxd(6x6)−dxd(5x5)u′(x)=36x5−25x4
Apply chain rule to find derivative: Apply the chain rule to find the derivative of y. Using the chain rule, we get y′=7(6x6−5x5)⋅ln(7)⋅(36x5−25x4).
Simplify derivative expression: Simplify the expression for the derivative.y′=(76x6−5x5)⋅ln(7)⋅(36x5−25x4)This is the final form of the derivative.
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