Calculus Examples

$\sum_{n = - 1}^{5} \sin (\frac{n π}{4})$

Step 1

Expand the series for each value of $n$ .

$\sin (\frac{- 1 π}{4}) + \sin (\frac{0 π}{4}) + \sin (\frac{1 π}{4}) + \dots + \sin (\frac{5 π}{4})$

Step 2

Simplify the expanded form.

$1$