### Chain Rule & Integration by Substitution

Package of problems

## Problem

Look at the functions in the table below.

Is there a property or feature that is shared by two functions in a row but not the third? If so, we can say that the third function is the odd one out.

Find a reason why each function in the table could be the odd one out in its row.

 $y=\sin x^2$ $y=\ln{x^2}$ $y=\tan x (\sec^2 x-1)$ $y=9x^2-6x+1$ $y=\ln{3x}$ $y=\sqrt{3x-1}$ $y=e^{5x}$ $y=\dfrac{1}{x^2+4x+4}$ $y=e^{x+4}$

Can you also find an odd one out within each column?