Math Problem Statement

diffrerentiate y=x power x

Solution

To differentiate y=xxy = x^x, we'll proceed as follows:

Step 1: Rewrite the function using logarithms

Given: y=xxy = x^x

Take the natural logarithm on both sides: ln(y)=ln(xx)\ln(y) = \ln(x^x)

Using the logarithmic identity ln(ab)=bln(a)\ln(a^b) = b \ln(a), we get: ln(y)=xln(x)\ln(y) = x \ln(x)

Step 2: Differentiate implicitly

Differentiate both sides with respect to xx: 1ydydx=ddx(xln(x))\frac{1}{y} \frac{dy}{dx} = \frac{d}{dx}(x \ln(x))

Now, apply the product rule to xln(x)x \ln(x): ddx(xln(x))=1ln(x)+x1x=ln(x)+1\frac{d}{dx}(x \ln(x)) = 1 \cdot \ln(x) + x \cdot \frac{1}{x} = \ln(x) + 1

Therefore: 1ydydx=ln(x)+1\frac{1}{y} \frac{dy}{dx} = \ln(x) + 1

Step 3: Solve for dydx\frac{dy}{dx}

Multiply both sides by yy: dydx=y(ln(x)+1)\frac{dy}{dx} = y(\ln(x) + 1)

Substituting y=xxy = x^x: dydx=xx(ln(x)+1)\frac{dy}{dx} = x^x (\ln(x) + 1)

Final answer

dydx=xx(ln(x)+1)\frac{dy}{dx} = x^x (\ln(x) + 1)

Would you like more details or have any questions?

Related Questions

  1. How do you differentiate y=xx2y = x^{x^2}?
  2. How would you integrate xxx^x?
  3. What is the derivative of y=xay = x^a where aa is a constant?
  4. How do you find the second derivative of y=xxy = x^x?
  5. How does the differentiation change for y=axy = a^x where aa is a constant?

Tip

Always consider using logarithmic differentiation when both the base and exponent involve the variable, as it simplifies the process.

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Math Problem Analysis

Mathematical Concepts

Calculus
Differentiation
Logarithmic Differentiation

Formulas

Derivative of a product: (uv)' = u'v + uv'
Logarithmic identity: ln(a^b) = b * ln(a)
Implicit differentiation

Theorems

Product Rule
Chain Rule
Logarithmic Differentiation

Suitable Grade Level

Grades 11-12, College Level