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What is the value of 
(d)/(dx)(root(5)(x^(2))) at 
x=32 ?

What is the value of ddx(x25) \frac{d}{d x}\left(\sqrt[5]{x^{2}}\right) at x=32 x=32 ?

Full solution

Q. What is the value of ddx(x25) \frac{d}{d x}\left(\sqrt[5]{x^{2}}\right) at x=32 x=32 ?
  1. Rewrite function: We need to find the derivative of the function f(x)=x25f(x) = x^{\frac{2}{5}}. To do this, we will use the power rule for differentiation, which states that if f(x)=xnf(x) = x^n, then f(x)=nxn1f'(x) = n \cdot x^{n-1}.
  2. Apply power rule: First, we rewrite the fifth root of xx squared as x(2/5)x^{(2/5)} to make it easier to differentiate.\newlinef(x)=(x2)(1/5)=x(2/5)f(x) = (x^2)^{(1/5)} = x^{(2/5)}
  3. Find derivative: Now we apply the power rule for differentiation to find f(x)f'(x). f(x)=(25)x(251)=(25)x35f'(x) = \left(\frac{2}{5}\right)*x^{\left(\frac{2}{5}-1\right)} = \left(\frac{2}{5}\right)*x^{-\frac{3}{5}}
  4. Evaluate at x=32x=32: Next, we need to evaluate the derivative at x=32x=32.f(32)=(25)3235f'(32) = \left(\frac{2}{5}\right)\cdot32^{-\frac{3}{5}}
  5. Simplify expression: We simplify the expression by calculating 32(3/5)32^{(-3/5)}. Since 3232 is 252^5, we can rewrite 32(3/5)32^{(-3/5)} as (25)(3/5)(2^5)^{(-3/5)}.\newline32(3/5)=(25)(3/5)=25(3/5)=2332^{(-3/5)} = (2^5)^{(-3/5)} = 2^{5*(-3/5)} = 2^{-3}
  6. Calculate value: Now we calculate 232^{-3}, which is 1/(23)=1/81/(2^3) = 1/8.\newline23=1/(23)=1/82^{-3} = 1/(2^3) = 1/8
  7. Calculate value: Now we calculate 232^{-3}, which is 1/(23)=1/81/(2^3) = 1/8. 23=1/(23)=1/82^{-3} = 1/(2^3) = 1/8 Finally, we multiply (2/5)(2/5) by (1/8)(1/8) to get the value of the derivative at x=32x=32. f(32)=(2/5)(1/8)=2/(58)=2/40=1/20f'(32) = (2/5)*(1/8) = 2/(5*8) = 2/40 = 1/20

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