Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Given the function 
y=(4)/(5root(5)(x^(3))), find 
(dy)/(dx). Express your answer in radical form without using negative exponents, simplifying all fractions.
Answer: 
(dy)/(dx)=

Given the function y=45x35 y=\frac{4}{5 \sqrt[5]{x^{3}}} , find dydx \frac{d y}{d x} . Express your answer in radical form without using negative exponents, simplifying all fractions.\newlineAnswer: dydx= \frac{d y}{d x}=

Full solution

Q. Given the function y=45x35 y=\frac{4}{5 \sqrt[5]{x^{3}}} , find dydx \frac{d y}{d x} . Express your answer in radical form without using negative exponents, simplifying all fractions.\newlineAnswer: dydx= \frac{d y}{d x}=
  1. Rewrite function with fractional exponent: We are given the function y=455(x3)y = \frac{4}{5\sqrt{5}(x^{3})}. To find the derivative dydx\frac{dy}{dx}, we will use the power rule for differentiation, which states that if y=xny = x^n, then dydx=nxn1\frac{dy}{dx} = n\cdot x^{n-1}. In this case, we need to rewrite the function in a form that allows us to apply the power rule.
  2. Combine constants and powers: First, we rewrite the square root in the denominator as a fractional exponent: 5=51/2\sqrt{5} = 5^{1/2}. Then, we rewrite the function yy as y=4551/2x3y = \frac{4}{5 \cdot 5^{1/2} \cdot x^3}. This can be further simplified by combining the constants and the powers of 55.
  3. Apply power rule for differentiation: The function becomes y=(4532)x3y = (\frac{4}{5^{\frac{3}{2}}}) \cdot x^{-3}. Now we can apply the power rule to find the derivative with respect to xx.
  4. Simplify the derivative expression: Differentiating yy with respect to xx, we get dydx=4532(3)x(31)\frac{dy}{dx} = \frac{4}{5^{\frac{3}{2}}} \cdot (-3) \cdot x^{(-3 - 1)}. This simplifies to dydx=12532x4\frac{dy}{dx} = -\frac{12}{5^{\frac{3}{2}}} \cdot x^{-4}.
  5. Rewrite in radical form: We want to express the answer in radical form without using negative exponents. To do this, we rewrite x4x^{-4} as 1/x41/x^4 and 53/25^{3/2} as 53\sqrt{5^3} or 125\sqrt{125}.
  6. Finalize the derivative expression: The derivative dydx\frac{dy}{dx} in radical form without negative exponents is dydx=12125x4\frac{dy}{dx} = -\frac{12}{\sqrt{125}*x^4}. We can simplify 125\sqrt{125} to 555\sqrt{5}.
  7. Finalize the derivative expression: The derivative (dy)/(dx)(dy)/(dx) in radical form without negative exponents is (dy)/(dx)=12/(125x4)(dy)/(dx) = -12/(\sqrt{125}*x^4). We can simplify 125\sqrt{125} to 555\sqrt{5}.Finally, we simplify the fraction by dividing 12-12 by 555\sqrt{5}. The derivative (dy)/(dx)(dy)/(dx) is (dy)/(dx)=12/(55x4)(dy)/(dx) = -12/(5\sqrt{5}*x^4).

More problems from Find trigonometric ratios using multiple identities