Q. If y3−2−3x=2xy then find dxdy in terms of x and y.Answer: dxdy=
Differentiate Equation: Differentiate both sides of the equation with respect to x. We will use the power rule, product rule, and the fact that the derivative of a constant is zero. Differentiate y3 with respect to x using the chain rule, which gives us 3y2dxdy. The derivative of −2 with respect to x is 0. The derivative of −3x with respect to x is −3. The derivative of y30 with respect to x using the product rule is y32. So, differentiating both sides of the equation y33 with respect to x gives us: y35.
Rearrange for dxdy: Rearrange the equation to solve for dxdy. We need to collect all the terms with dxdy on one side and the rest on the other side. 3y2dxdy−3=2y+2xdxdy. Subtract 2xdxdy from both sides to get: 3y2dxdy−2xdxdy=2y+3. Factor out dxdy from the left side: dxdy(3y2−2x)=2y+3.
Solve for dxdy: Solve for dxdy.Divide both sides by (3y2−2x) to isolate dxdy:dxdy=3y2−2x2y+3.This gives us the derivative of y with respect to x in terms of x and y.
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