Trigonometry Examples

Find the Quadrant of the Angle -(1pi)/4
Step 1
Convert the radian measure to degrees.
Tap for more steps...
Step 1.1
To convert radians to degrees, multiply by , since a full circle is or radians.
Step 1.2
Multiply by .
Step 1.3
Cancel the common factor of .
Tap for more steps...
Step 1.3.1
Move the leading negative in into the numerator.
Step 1.3.2
Factor out of .
Step 1.3.3
Cancel the common factor.
Step 1.3.4
Rewrite the expression.
Step 1.4
Cancel the common factor of .
Tap for more steps...
Step 1.4.1
Factor out of .
Step 1.4.2
Cancel the common factor.
Step 1.4.3
Rewrite the expression.
Step 1.5
Multiply by .
Step 1.6
Convert to a decimal.
Step 2
For angles smaller than , add to the angle until the angle is larger than .
Step 3
The angle is in the fourth quadrant.
Quadrant
Step 4