Find the First Four Non-Zero Terms of the Taylor Series $f ( x ) = e ^ { x }$

True/False

Find the first four non-zero terms of the Taylor series at x = 0 of $f ( x ) = e ^ { x }$ .
Is $f ( x ) = 1 - x + \frac { x ^ { 2 } } { 2 ! } - \frac { x ^ { 3 } } { 3 ! }$ correct?