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Find the derivative of the following function.

y=ln(4x^(5))
Answer: 
y^(')=

Find the derivative of the following function.\newliney=ln(4x5) y=\ln \left(4 x^{5}\right) \newlineAnswer: y= y^{\prime}=

Full solution

Q. Find the derivative of the following function.\newliney=ln(4x5) y=\ln \left(4 x^{5}\right) \newlineAnswer: y= y^{\prime}=
  1. Apply Chain Rule: Apply the chain rule for differentiation.\newlineThe 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.\newlineFor the function y=ln(4x5)y = \ln(4x^{5}), the outer function is ln(u)\ln(u) and the inner function is u=4x5u = 4x^{5}.\newlineFirst, we find the derivative of the outer function with respect to its argument uu, which is 1/u1/u.\newlineThen, we will find the derivative of the inner function with respect to xx, which is the derivative of 4x54x^{5}.
  2. Differentiate Inner Function: Differentiate the inner function 4x54x^{5}. Using the power rule, the derivative of xnx^{n} with respect to xx is nxn1n*x^{n-1}. Therefore, the derivative of 4x54x^{5} with respect to xx is 54x45*4x^{4} or 20x420x^{4}.
  3. Combine Derivatives: Combine the derivatives using the chain rule.\newlineThe derivative of yy with respect to xx is the derivative of the outer function times the derivative of the inner function.\newlineSo, y=1u×(20x4)y' = \frac{1}{u} \times (20x^{4}), where u=4x5u = 4x^{5}.
  4. Substitute Back: Substitute uu back into the derivative.\newlineReplace uu with 4x54x^{5} in the expression for yy'.\newliney=14x5(20x4)y' = \frac{1}{4x^{5}} \cdot (20x^{4})
  5. Simplify Expression: Simplify the expression.\newlineWe can simplify the expression by canceling out x4x^{4} from the numerator and denominator.\newliney=20x44x5=204x=5xy' = \frac{20x^{4}}{4x^{5}} = \frac{20}{4x} = \frac{5}{x}

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