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Find the derivative of the following function.

y=ln(4x^(2))
Answer: 
y^(')=

Find the derivative of the following function.\newliney=ln(4x2) y=\ln \left(4 x^{2}\right) \newlineAnswer: y= y^{\prime}=

Full solution

Q. Find the derivative of the following function.\newliney=ln(4x2) y=\ln \left(4 x^{2}\right) \newlineAnswer: y= y^{\prime}=
  1. Identify function: Identify the function to differentiate.\newlineWe have y=ln(4x2)y = \ln(4x^{2}). We need to find the derivative of this function with respect to xx.
  2. 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. Here, the outer function is ln(u)\ln(u) and the inner function is u=4x2u = 4x^{2}.
  3. Differentiate outer function: Differentiate the outer function with respect to the inner function.\newlineThe derivative of ln(u)\ln(u) with respect to uu is 1u\frac{1}{u}.\newlineSo, ddx[ln(u)]=1u\frac{d}{dx}[\ln(u)] = \frac{1}{u}, where u=4x2u = 4x^{2}.
  4. Differentiate inner function: Differentiate the inner function with respect to xx. The inner function is u=4x2u = 4x^{2}. The derivative of 4x24x^{2} with respect to xx is 8x8x. So, ddx[4x2]=8x\frac{d}{dx}[4x^{2}] = 8x.
  5. Apply chain rule: Apply the chain rule using the derivatives from steps 33 and 44. The derivative of yy with respect to xx is the derivative of the outer function times the derivative of the inner function. So, y=1u(8x)y' = \frac{1}{u} \cdot (8x), where u=4x2u = 4x^{2}.
  6. Substitute back: Substitute uu back into the derivative.\newlineReplace uu with 4x24x^{2} in the expression for yy'.\newliney=14x2×(8x)y' = \frac{1}{4x^{2}} \times (8x).
  7. Simplify expression: Simplify the expression.\newliney=8x4x2y' = \frac{8x}{4x^{2}}.\newlineWe can simplify this by canceling out an xx from the numerator and denominator.\newliney=84xy' = \frac{8}{4x}.
  8. Simplify constant: Simplify the constant.\newlineDivide 88 by 44 to get 22.\newliney=2x.y' = \frac{2}{x}.

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