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Given the function 
f(x)=(x)/(1-2x^(4)), find 
f^(')(x) in simplified form.
Answer: 
f^(')(x)=

Given the function f(x)=x12x4 f(x)=\frac{x}{1-2 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)=x12x4 f(x)=\frac{x}{1-2 x^{4}} , find f(x) f^{\prime}(x) in simplified form.\newlineAnswer: f(x)= f^{\prime}(x)=
  1. Quotient Rule Explanation: To find the derivative of the function f(x)=x12x4f(x) = \frac{x}{1-2x^{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 v(x)u(x)u(x)v(x)(v(x))2\frac{v(x)u'(x) - u(x)v'(x)}{(v(x))^{2}}. Here, u(x)=xu(x) = x and v(x)=12x4v(x) = 1 - 2x^{4}.
  2. Find u(x)u'(x): First, we need to find the derivative of u(x)u(x), which is u(x)u'(x). Since u(x)=xu(x) = x, the derivative u(x)u'(x) is 11 because the derivative of xx with respect to xx is 11.
  3. Find v(x)v'(x): Next, we need to find the derivative of v(x)v(x), which is v(x)v'(x). Since v(x)=12x4v(x) = 1 - 2x^{4}, we apply the power rule to find the derivative of 2x4-2x^{4}. The power rule states that the derivative of xnx^n with respect to xx is nxn1n\cdot x^{n-1}. Therefore, v(x)=024x41=8x3v'(x) = 0 - 2\cdot 4\cdot x^{4-1} = -8x^{3}.
  4. Apply Quotient Rule: Now we apply the quotient rule. We have u(x)=1u'(x) = 1 and v(x)=8x3v'(x) = -8x^{3}, so we plug these into the quotient rule formula:\newlinef(x)=(12x4)(1)(x)(8x3)(12x4)2f'(x) = \frac{ (1 - 2x^{4})(1) - (x)(-8x^{3}) }{ (1 - 2x^{4})^2}
  5. Simplify Derivative: Simplify the numerator of the derivative:\newlinef(x)=12x4(8x4)(12x4)2f'(x) = \frac{1 - 2x^{4} - (-8x^{4})}{(1 - 2x^{4})^2}\newlinef(x)=12x4+8x4(12x4)2f'(x) = \frac{1 - 2x^{4} + 8x^{4}}{(1 - 2x^{4})^2}\newlinef(x)=1+6x4(12x4)2f'(x) = \frac{1 + 6x^{4}}{(1 - 2x^{4})^2}

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