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Given the function 
y=-(2)/(3root(5)(x^(4))), find 
(dy)/(dx). Express your answer in radical form without using negative exponents, simplifying all fractions.
Answer: 
(dy)/(dx)=

Given the function y=23x45 y=-\frac{2}{3 \sqrt[5]{x^{4}}} , 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=23x45 y=-\frac{2}{3 \sqrt[5]{x^{4}}} , 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: We are given the function y=235x4y = -\frac{2}{3\sqrt{5}x^{4}}. To find the derivative dydx\frac{dy}{dx}, we will use the power rule for differentiation, which states that if y=axny = ax^n, then dydx=naxn1\frac{dy}{dx} = n\cdot ax^{n-1}. In this case, we have a constant multiplied by xx raised to a power, so we will apply the power rule accordingly.
  2. Apply Power Rule: First, let's rewrite the function to make it easier to differentiate. We can express the cube root of 55 as 51/35^{1/3} and the variable xx to the power of 44 as x4x^4. So the function becomes y=2351/3x4y = -\frac{2}{3\cdot 5^{1/3}\cdot x^4}. Now, we can treat 351/33\cdot 5^{1/3} as a constant coefficient and x4x^4 as the variable term.
  3. Differentiate Variable Term: Applying the power rule, we differentiate the variable term x4x^4. The derivative of x4x^4 with respect to xx is 4x41=4x34\cdot x^{4-1} = 4\cdot x^3. We will multiply this by the constant coefficient 2351/3-\frac{2}{3\cdot 5^{1/3}}.
  4. Simplify Constants: The derivative of yy with respect to xx is then dydx=235134x3\frac{dy}{dx} = -\frac{2}{3\cdot5^{\frac{1}{3}}} \cdot 4x^3. We can simplify this by multiplying the constants together.
  5. Express Derivative: Multiplying the constants gives us (dy)/(dx)=(24351/3)x3=(8351/3)x3(dy)/(dx) = -\left(\frac{2 \cdot 4}{3 \cdot 5^{1/3}}\right) \cdot x^3 = -\left(\frac{8}{3 \cdot 5^{1/3}}\right) \cdot x^3. This is the derivative in terms of xx, but we need to express it without using negative exponents.
  6. Check for Negative Exponents: Since there are no negative exponents in our expression, we do not need to make any further adjustments to the form of the derivative. The expression is already simplified, and the fraction is as simplified as it can be without a decimal approximation of the cube root of 55.
  7. Final Derivative: Therefore, the derivative of the function y=235x4y = -\frac{2}{3\sqrt{5}x^{4}} with respect to xx is dydx=(8351/3)x3\frac{dy}{dx} = -\left(\frac{8}{3\cdot 5^{1/3}}\right) \cdot x^3. This is the final answer in radical form, with all fractions simplified and no negative exponents.

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