When doing this problem, because we have the hyperbolic secant of an LNI, would use the actual definition. So we'd get X to the 12 + 1 two over E to the lane of X to the 6th, plus E to the negative lane of X to the 6th. So that's going to give us X to the 12th plus 1 * 2 / X to the 6th plus 1 / X to the 6th. Now to get rid of the complex fraction, I'm going to multiply by X to the 6th over X to the 6th. Remember, we're still just on Y at this point. So we get 12. No, we get X to the 12th plus one times 2X to the 6th over X to the 12th plus one. So the X to the 12th plus ones cancel and we get 2X to the 6th. So our Y prime 12X to the 5th.