Q. If 3−5y+xy=0 then find dxdy in terms of x and y.Answer: dxdy=
Given Equation: We are given the equation 3−5y+xy=0, and we need to find the derivative of y with respect to x, denoted as dxdy. To do this, we will use implicit differentiation, which involves taking the derivative of both sides of the equation with respect to x, while treating y as a function of x.
Implicit Differentiation: First, we differentiate each term of the equation with respect to x. The derivative of the constant 3 with respect to x is 0. The derivative of −5y with respect to x is −5dxdy, since y is a function of x. The derivative of xy with respect to x is 31 by using the product rule (32, where 33 and 34).
Differentiate Terms: Now we write the differentiated equation: 0−5dxdy+y+xdxdy=0.
Write Differentiated Equation: Next, we combine like terms to solve for dxdy. This gives us: −5dxdy+xdxdy=−y.
Combine Like Terms: We factor out dxdy from the left side of the equation: (dxdy)(−5+x)=−y.
Factor Out: Now, we solve for dxdy by dividing both sides of the equation by (−5+x): dxdy=−5+x−y.