Consider the Function $f(x)=1-\cos x$ Is the Maclaurin Series For .Is $f(x)$

True/False

Consider the function $f(x)=1-\cos x$ .Is the Maclaurin series for $f(x)$ given by $\sum_{i=1}^{\infty} \frac{(-1)^{i+1} x^{2 i}}{(2 i) !}$ ?