Trigonometry Examples

Find the Exact Value cos(780)
cos(780)
Step 1
Remove full rotations of 360° until the angle is between 0° and 360°.
cos(60)
Step 2
The exact value of cos(60) is 12.
12
Step 3
The result can be shown in multiple forms.
Exact Form:
12
Decimal Form:
0.5
Enter a problem...
 [x2  12  π  xdx ]