Trigonometry Examples

$\sin (\frac{3 π}{7}) \cos (\frac{11 π}{42}) - \cos (\frac{3 π}{7}) \sin (\frac{11 π}{42})$

Step 1

The result can be shown in multiple forms.

Exact Form:

$\sin (\frac{3 π}{7}) \cos (\frac{11 π}{42}) - \cos (\frac{3 π}{7}) \sin (\frac{11 π}{42})$

Decimal Form:

$0.50000000 \dots$