And so we don't need the absolute value signs over there. Now, we should pause a second because we're actually almost done. We have just set up three functions. You could think of this as f of x is equal to, you could view this as f of theta is equal to one, g of theta is equal to this, and h of theta is equal to that. And over the interval that we care about, we could say four, negative pi over two is less than theta, is less than pi over two. But over this interval, this is true for any theta over which these functions are defined. Sine of theta over theta is defined over this interval except where theta is equal to zero.