Now f of 1.1 is negative one over 1.1 minus one squared. So see, this denominator here is going to be.1 squared. So this is going to be 0.01. And so this is going to be negative 100. So let me just write that down. That's going to be negative 100. So if x is 1.01, well, this is going to be negative one over 1.01 minus one squared.