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Given the function 
f(x)=(x)/(5-2x^(4)), find 
f^(')(x) in simplified form.
Answer: 
f^(')(x)=

Given the function f(x)=x52x4 f(x)=\frac{x}{5-2 x^{4}} , find f(x) f^{\prime}(x) in simplified form.\newlineAnswer: f(x)= f^{\prime}(x)=

Full solution

Q. Given the function f(x)=x52x4 f(x)=\frac{x}{5-2 x^{4}} , find f(x) f^{\prime}(x) in simplified form.\newlineAnswer: f(x)= f^{\prime}(x)=
  1. Apply Quotient Rule: To find the derivative of the function f(x)=x52x4f(x) = \frac{x}{5 - 2x^4}, we will use the quotient rule. The quotient rule states that if we have a function that is the quotient of two functions, u(x)v(x)\frac{u(x)}{v(x)}, then its derivative f(x)f'(x) is given by:\newlinef(x)=v(x)u(x)u(x)v(x)(v(x))2f'(x) = \frac{v(x) \cdot u'(x) - u(x) \cdot v'(x)}{(v(x))^2}\newlineHere, u(x)=xu(x) = x and v(x)=52x4v(x) = 5 - 2x^4.
  2. Find u(x)u'(x): First, we find the derivative of u(x)u(x) with respect to xx. Since u(x)=xu(x) = x, the derivative u(x)u'(x) is:\newlineu(x)=d(x)dx=1u'(x) = \frac{d(x)}{dx} = 1
  3. Find v(x)v'(x): Next, we find the derivative of v(x)v(x) with respect to xx. Since v(x)=52x4v(x) = 5 - 2x^4, the derivative v(x)v'(x) is:\newlinev(x)=d(52x4)dx=024x3=8x3v'(x) = \frac{d(5 - 2x^4)}{dx} = 0 - 2 \cdot 4x^3 = -8x^3
  4. Apply Quotient Rule: Now we apply the quotient rule using the derivatives u(x)u'(x) and v(x)v'(x) we found: f(x)=(52x4)(1)(x)(8x3)(52x4)2f'(x) = \frac{(5 - 2x^4) \cdot (1) - (x) \cdot (-8x^3)}{(5 - 2x^4)^2}
  5. Simplify Numerator: Simplify the numerator of the derivative:\newlinef(x)=52x4(8x4)(52x4)2f'(x) = \frac{5 - 2x^4 - (-8x^4)}{(5 - 2x^4)^2}\newlinef(x)=5+6x4(52x4)2f'(x) = \frac{5 + 6x^4}{(5 - 2x^4)^2}
  6. Final Derivative: The derivative f(x)f'(x) is now in simplified form:\newlinef(x)=5+6x42520x4+4x8f'(x) = \frac{5 + 6x^4}{25 - 20x^4 + 4x^8}

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