Q. If −y−y2+y3=3x2 then find dxdy in terms of x and y.Answer: dxdy=
Identify Given Equation: Identify the given equation and the requirement to differentiate with respect to x.Given equation: −y−y2+y3=3x2We need to find dxdy.
Differentiate with Respect: Differentiate both sides of the equation with respect to x, using implicit differentiation.dxd(−y−y2+y3)=dxd(3x2)
Apply Chain Rule: Apply the chain rule to differentiate the terms involving y with respect to x. dxd(−y)=−dxdy dxd(−y2)=−2y⋅dxdy dxd(y3)=3y2⋅dxdy dxd(3x2)=6x So, −dxdy−2y(dxdy)+3y2(dxdy)=6x
Combine Like Terms: Combine like terms and solve for dxdy.dx−dy−2ydxdy+3y2dxdy=6xdxdy(−1−2y+3y2)=6x
Isolate dxdy: Isolate dxdy on one side of the equation.dxdy=−1−2y+3y26x