Q. If −y2−x3+4+5x=0 then find dxdy in terms of x and y.Answer: dxdy=
Given Equation: We are given the equation −y2−x3+4+5x=0. To find dxdy, we will differentiate both sides of the equation with respect to x, treating y as an implicit function of x.
Differentiate −y2: Differentiate −y2 with respect to x. Since y is a function of x, we use the chain rule: −2y⋅dxdy.
Differentiate −x3: Differentiate −x3 with respect to x. The derivative is −3x2.
Differentiate 4: Differentiate 4 with respect to x. The derivative of a constant is 0.
Differentiate 5x: Differentiate 5x with respect to x. The derivative is 5.
Combine Derivatives: Combine all the derivatives to rewrite the differentiated equation: −2y⋅dxdy−3x2+0+5=0.
Isolate (dy)/(dx): Now, we solve for (dy)/(dx). First, we isolate the term with (dy)/(dx) on one side: −2y⋅(dy)/(dx)=3x2−5.
Solve for (dxdy):</b>Dividebothsidesby$−2y to solve for (dxdy):$dxdy=−2y3x2−5.