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Find the derivative of p(x) p(x) . \newlinep(x)=ln(x) p(x) = \ln(\sqrt{x}) \newlinep(x)= p' (x) = ______

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Q. Find the derivative of p(x) p(x) . \newlinep(x)=ln(x) p(x) = \ln(\sqrt{x}) \newlinep(x)= p' (x) = ______
  1. Understand Function: Understand the function and what is being asked.\newlineWe need to find the derivative of the function p(x)=ln(x)p(x) = \ln(\sqrt{x}). The derivative of a function gives us the rate at which the function's value changes with respect to changes in the variable 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 x\sqrt{x} or x(1/2)x^{(1/2)}.
  3. Differentiate Outer Function: Differentiate the outer function.\newlineThe derivative of ln(u)\ln(u) with respect to uu is 1u\frac{1}{u}. So, we have 1x\frac{1}{\sqrt{x}} for the outer derivative when we substitute back the inner function.
  4. Differentiate Inner Function: Differentiate the inner function. The derivative of x\sqrt{x} or x(1/2)x^{(1/2)} with respect to xx is (1/2)x(1/2)(1/2)x^{(-1/2)}.
  5. Multiply Derivatives: Multiply the derivatives from Step 33 and Step 44.\newlineWe multiply 1x\frac{1}{\sqrt{x}} by (12)x(12)(\frac{1}{2})x^{(-\frac{1}{2})} to get the derivative of the composite function. This simplifies to (12)(1x(12))x(12).(\frac{1}{2}) \cdot (\frac{1}{x^{(\frac{1}{2})}}) \cdot x^{(-\frac{1}{2})}.
  6. Simplify Expression: Simplify the expression.\newlineWe can simplify (12)×(1x12)×x12(\frac{1}{2}) \times (\frac{1}{x^{\frac{1}{2}}}) \times x^{-\frac{1}{2}} by combining the exponents of xx. This results in (12)×x1(\frac{1}{2}) \times x^{-1} or (12)×(1x)(\frac{1}{2}) \times (\frac{1}{x}).
  7. Write Final Answer: Write the final answer.\newlineThe derivative of p(x)=ln(x)p(x) = \ln(\sqrt{x}) is p(x)=121xp′(x) = \frac{1}{2} \cdot \frac{1}{x}.

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