Trigonometry Examples

$\sin (\frac{π}{2}) \cos (\frac{π}{7}) + \cos (\frac{π}{2}) \sin (\frac{π}{7})$

Step 1

The polynomial cannot be factored using the grouping method. Try a different method, or if you aren't sure, choose Factor.

The polynomial cannot be factored using the grouping method.

Step 2

The exact value of $\sin (\frac{π}{2})$ is $1$ .

$1 \cos (\frac{π}{7}) + \cos (\frac{π}{2}) \sin (\frac{π}{7})$

Step 3

Multiply $\cos (\frac{π}{7})$ by $1$ .

$\cos (\frac{π}{7}) + \cos (\frac{π}{2}) \sin (\frac{π}{7})$

Step 4

Evaluate $\cos (\frac{π}{7})$ .

$0.90096886 + \cos (\frac{π}{2}) \sin (\frac{π}{7})$

Step 5

The exact value of $\cos (\frac{π}{2})$ is $0$ .

$0.90096886 + 0 \sin (\frac{π}{7})$

Step 6

Evaluate $\sin (\frac{π}{7})$ .

$0.90096886 + 0 \cdot 0.43388373$

Step 7

Multiply $0$ by $0.43388373$ .

$0.90096886 + 0$

Step 8

Add $0.90096886$ and $0$ .

$0.90096886$