Differentiate the following functions with respect to x:
(ax + b)/(cx + d)
Let, y = (ax + b)/(cx + d)
We have to find dy/dx
As we can observe that y is a product of two functions say u and v where,
u = ax + b and v = cx + d
∴ y = uv
As we know that to find the derivative of product of two function we apply product rule of differentiation.
By product rule, we have –
…equation 1
As, u = ax + b
∴ …equation 2 {∵
}
As, v =
As,
…equation 3
∴ from equation 1, we can find dy/dx
∴
⇒ {using equation 2 & 3}
⇒
Hence,