Q. If y3−5x2+x3=−5y2 then find dxdy in terms of x and y.Answer: dxdy=
Differentiate y3: To find the derivative dxdy, we need to differentiate both sides of the equation with respect to x, treating y as a function of x (implicit differentiation).The equation is y3−5x2+x3=−5y2.Differentiate each term with respect to x.
Differentiate −5x2: Differentiate y3 with respect to x. Using the chain rule, the derivative of y3 with respect to x is 3y2(dxdy).
Differentiate x3: Differentiate −5x2 with respect to x. The derivative of −5x2 with respect to x is −10x.
Differentiate −5y2: Differentiate x3 with respect to x. The derivative of x3 with respect to x is 3x2.
Combine differentiated terms: Differentiate −5y2 with respect to x. Using the chain rule, the derivative of −5y2 with respect to x is −10ydxdy.
Isolate (\frac{dy}{dx}): Combine all the differentiated terms to form the derivative of the entire equation.\(\newline\$3y^{2}(\frac{dy}{dx}) - 10x + 3x^{2} = -10y(\frac{dy}{dx}).\)
Factor out \((dy)/(dx)\): Now, we need to solve for \((dy)/(dx)\). Rearrange the terms to isolate \((dy)/(dx)\) on one side of the equation. \(3y^{2}(dy/dx) + 10y(dy/dx) = 10x - 3x^{2}\).
Divide to solve for \((\frac{dy}{dx}):\) Factor out \((\frac{dy}{dx})\) from the left side of the equation.\(\newline\)\((\frac{dy}{dx})(3y^{2} + 10y) = 10x - 3x^{2}.\)
Divide to solve for \((dy)/(dx)\): Factor out \((dy)/(dx)\) from the left side of the equation.\[(dy/dx)(3y^{2} + 10y) = 10x - 3x^{2}\].Divide both sides of the equation by \((3y^{2} + 10y)\) to solve for \((dy)/(dx)\).\[(dy/dx) = \frac{10x - 3x^{2}}{3y^{2} + 10y}\].
More problems from Transformations of quadratic functions