Q. If y2+3x−5x2=−3+2y then find dxdy in terms of x and y.Answer: dxdy=
Differentiate with respect to x: First, we need to differentiate both sides of the equation with respect to x. The equation is y2+3x−5x2=−3+2y.
Apply chain rule: Differentiate y2 with respect to x using the chain rule. The derivative of y2 with respect to x is 2y⋅(dxdy).
Differentiate 3x: Differentiate 3x with respect to x. The derivative of 3x with respect to x is 3.
Differentiate −5x2: Differentiate −5x2 with respect to x. The derivative of −5x2 with respect to x is −10x.
Differentiate −3: Differentiate −3 with respect to x. The derivative of a constant is 0.
Apply constant multiple rule: Differentiate 2y with respect to x using the constant multiple rule. The derivative of 2y with respect to x is 2×(dxdy).
Combine differentiated parts: Combine all the differentiated parts to form the derivative of the entire equation. This gives us 2y⋅(dxdy)+3−10x=2⋅(dxdy).
Solve for (\frac{dy}{dx}): Now, we need to solve for \$(\frac{dy}{dx})\. Subtract \$2 \times (\frac{dy}{dx}) from both sides to get all the (dxdy) terms on one side. This gives us \(2y \times (\frac{dy}{dx}) - 2 \times (\frac{dy}{dx}) = −3 + 10x\.
Factor out dxdy: Factor out dxdy from the left side of the equation. This gives us dxdy×(2y−2)=−3+10x.
Divide to solve for (dxdy): Divide both sides by (2y−2) to solve for (dxdy). This gives us (dxdy)=2y−2−3+10x.