 Hi, and welcome to the session. Let's discuss the following question. The question says, if y is equal to square root of x minus 3 into x squared plus 4 by 3x squared plus 4x plus 5, find the y by dx. Let's now begin with the solution. We are given that y is equal to square root of x minus 3 into x squared plus 4 by 3x squared plus 4x plus 5. Now, we have to find d y by dx. Now, we will square both sides of this equation. And square in both sides, we get y squared equals to x minus 3 into x squared plus 4 divided by 3x squared plus 4x plus 5. Now, we will take log on both sides of this equation, equals to log x minus 3 into x squared plus 4 divided by 3x squared plus 4x plus 5.