Q. If −2y3−x3=5xy then find dxdy in terms of x and y.Answer: dxdy=
Differentiate Left Side: We are given the equation −2y3−x3=5xy. To find dxdy, we need to differentiate both sides of the equation with respect to x, using implicit differentiation.
Differentiate Right Side: Differentiate the left side of the equation with respect to x: The derivative of −2y3 with respect to x is −6y2dxdy because y is a function of x.The derivative of −x3 with respect to x is −3x2.
Combine Derivatives: Differentiate the right side of the equation with respect to x: The derivative of 5xy with respect to x is 5y+5xdxdy by using the product rule.
Solve for (\frac{dy}{dx}): Now we combine the derivatives from both sides to form the equation:\(\newline\(-6y^{2}(\frac{dy}{dx}) - 3x^{2} = 5y + 5x(\frac{dy}{dx}).
Factor Out (dy)/(dx): We need to solve for (dy)/(dx). To do this, we'll move all terms involving (dy)/(dx) to one side and the rest to the other side:−6y2(dy)/(dx)−5x(dy)/(dx)=5y+3x2.
Divide to Solve (dxdy):</b>Factorout$(dxdy) from the left side of the equation:(dxdy)(−6y2−5x)=5y+3x2.
Divide to Solve (dy)/(dx): Factor out (dy)/(dx) from the left side of the equation:(dy)/(dx)(−6y2−5x)=5y+3x2.Now, divide both sides by (−6y2−5x) to solve for (dy)/(dx):(dy)/(dx)=(5y+3x2)/(−6y2−5x).