Math Problem Statement

Differentiate the function g(x) = 1 / sqrt(x) + sqrt[5](x)

Solution

The function given is:

g(x)=1x+x5g(x) = \frac{1}{\sqrt{x}} + \sqrt[5]{x}

We will differentiate this function step by step.

Step 1: Rewrite the terms

g(x)=x12+x15g(x) = x^{-\frac{1}{2}} + x^{\frac{1}{5}}

Step 2: Differentiate each term

  1. Differentiate x12x^{-\frac{1}{2}}: ddx(x12)=12x32\frac{d}{dx}(x^{-\frac{1}{2}}) = -\frac{1}{2} x^{-\frac{3}{2}}

  2. Differentiate x15x^{\frac{1}{5}}: ddx(x15)=15x45\frac{d}{dx}(x^{\frac{1}{5}}) = \frac{1}{5} x^{-\frac{4}{5}}

Step 3: Combine the results

g(x)=12x32+15x45g'(x) = -\frac{1}{2} x^{-\frac{3}{2}} + \frac{1}{5} x^{-\frac{4}{5}}

So, the derivative of the function is:

g(x)=12x32+15x45g'(x) = -\frac{1}{2} x^{-\frac{3}{2}} + \frac{1}{5} x^{-\frac{4}{5}}

Would you like further clarification or details on any step?

Here are 5 related questions to expand your understanding:

  1. How would you find the second derivative of g(x)g(x)?
  2. What does the negative exponent signify in terms of the graph of the function?
  3. How would you apply the chain rule if the exponents were functions of xx?
  4. How do we handle more complex fractional exponents in derivatives?
  5. How would this function behave as x0x \to 0 and xx \to \infty?

Tip: Always rewrite roots and fractions in terms of exponents for easier differentiation.

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Math Problem Analysis

Mathematical Concepts

Differentiation
Power Rule
Exponents

Formulas

d/dx(x^n) = n * x^(n-1)
Exponent rules: x^(1/n) = nth root of x

Theorems

Power Rule for Differentiation

Suitable Grade Level

Grades 11-12