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Using implicit differentiation, find dydx\frac{dy}{dx}.\newline7x2y45xy2=44x-7x^{2}y^{4}-5xy^{2}=4-4x

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Q. Using implicit differentiation, find dydx\frac{dy}{dx}.\newline7x2y45xy2=44x-7x^{2}y^{4}-5xy^{2}=4-4x
  1. Apply Implicit Differentiation: To find the derivative dydx\frac{dy}{dx} using implicit differentiation, we need to differentiate both sides of the equation with respect to xx, treating yy as a function of xx. This means we will apply the product rule to terms involving both xx and yy, and the chain rule to terms involving yy.
  2. Differentiate 7x2y4-7x^{2}y^{4}: Differentiate the term 7x2y4-7x^{2}y^{4} with respect to xx. Using the product rule, we get the derivative of the first function times the second function plus the first function times the derivative of the second function. The derivative of x2x^{2} is 2x2x, and the derivative of y4y^{4} with respect to xx is 4y3(dydx)4y^{3}(\frac{dy}{dx}) by the chain rule.\newlineSo, the derivative of 7x2y4-7x^{2}y^{4} is 7[2xy4+x24y3(dydx)]-7[2xy^{4} + x^{2}\cdot 4y^{3}(\frac{dy}{dx})].
  3. Differentiate 5xy2-5xy^{2}: Differentiate the term 5xy2-5xy^{2} with respect to xx. Again, using the product rule, we get the derivative of the first function times the second function plus the first function times the derivative of the second function. The derivative of xx is 11, and the derivative of y2y^{2} with respect to xx is 2ydydx2y\frac{dy}{dx} by the chain rule.\newlineSo, the derivative of 5xy2-5xy^{2} is 5[y2+x2ydydx]-5[y^{2} + x\cdot 2y\frac{dy}{dx}].
  4. Differentiate 44x4-4x: Differentiate the right side of the equation, 44x4-4x, with respect to xx. The derivative of a constant is 00, and the derivative of 4x-4x with respect to xx is 4-4.\newlineSo, the derivative of 44x4-4x is 040 - 4.
  5. Combine and Simplify: Combine the derivatives from the previous steps to write the differentiated equation:\newline7[2xy4+x24y3(dydx)]5[y2+x2y(dydx)]=4-7[2xy^{4} + x^{2}\cdot4y^{3}\left(\frac{dy}{dx}\right)] - 5[y^{2} + x\cdot2y\left(\frac{dy}{dx}\right)] = -4.
  6. Isolate Terms: Simplify the equation by distributing the constants and combining like terms: \newline14xy428x2y3dydx5y210xydydx=4-14xy^{4} - 28x^{2}y^{3}\frac{dy}{dx} - 5y^{2} - 10xy\frac{dy}{dx} = -4.
  7. Factor Out (dydx):(\frac{dy}{dx}): Isolate terms with (dydx)(\frac{dy}{dx}) on one side and the rest on the other side:\newline\(-28x^{22}y^{33}(\frac{dy}{dx}) - 1010xy(\frac{dy}{dx}) = 44 + 1414xy^{44} + 55y^{22}.
  8. Solve for dydx\frac{dy}{dx}: Factor out dydx\frac{dy}{dx} from the left side of the equation:\newlinedydx(28x2y310xy)=4+14xy4+5y2\frac{dy}{dx}(-28x^{2}y^{3} - 10xy) = 4 + 14xy^{4} + 5y^{2}.
  9. Solve for (dydx):</b>Factorout$(dydx)(\frac{dy}{dx}):</b> Factor out \$(\frac{dy}{dx}) from the left side of the equation:\newline(dydx)(28x2y310xy)=4+14xy4+5y2(\frac{dy}{dx})(-28x^{2}y^{3} - 10xy) = 4 + 14xy^{4} + 5y^{2}.Solve for (dydx)(\frac{dy}{dx}) by dividing both sides of the equation by (28x2y310xy)(-28x^{2}y^{3} - 10xy):\newline(dydx)=4+14xy4+5y228x2y310xy(\frac{dy}{dx}) = \frac{4 + 14xy^{4} + 5y^{2}}{-28x^{2}y^{3} - 10xy}.

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