Find the Third Taylor Polynomial of F(x) = Cos X $\frac { \pi } { 2 }$

Short Answer

Find the third Taylor polynomial of f(x) = cos x at x = $\frac { \pi } { 2 }$ .
Enter your answer as an unlabeled polynomial in x - $\frac { \pi } { 2 }$ in standard form (i.e., highest powers first).