Trigonometry Examples

Convert from Radians to Degrees (7pi)/4
7π47π4
Step 1
To convert radians to degrees, multiply by 180π180π, since a full circle is 360°360° or 2π2π radians.
(7π4)180°π(7π4)180°π
Step 2
Cancel the common factor of ππ.
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Step 2.1
Factor ππ out of 7π7π.
π74180ππ74180π
Step 2.2
Cancel the common factor.
π74180π
Step 2.3
Rewrite the expression.
74180
74180
Step 3
Cancel the common factor of 4.
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Step 3.1
Factor 4 out of 180.
74(4(45))
Step 3.2
Cancel the common factor.
74(445)
Step 3.3
Rewrite the expression.
745
745
Step 4
Multiply 7 by 45.
315
Step 5
Convert to a decimal.
315°
 [x2  12  π  xdx ]