This challenge covers the topics of calculus and algebra.
In calculus we often find the derivatives of things. The derivitave of 1, π, of any other constant c, is 0. The derivative of x is 1, and that of any constant multiplied by x is that constant. And then the derivative of x2 is 2. All common knowledge. But what about the derivative of √x? That would be √x / 2x, We multiply by the exponent and then decrease it by 1. This does work with x2. But what about the derivative of √x+1? Try to factor the 1 out of the radical. That is today’s challenge. Good luck!
\frac d {dx} \sqrt {x+1}