Precalculus Examples

$\sin (\frac{π}{5}) \cos (\frac{π}{11}) + \cos (\frac{π}{5}) \sin (\frac{π}{11})$

Step 1

The result can be shown in multiple forms.

Exact Form:

$\sin (\frac{π}{5}) \cos (\frac{π}{11}) + \cos (\frac{π}{5}) \sin (\frac{π}{11})$

Decimal Form:

$0.79190224 \dots$