Trigonometry Examples

Convert from Degrees to Radians 9 degrees
9°9°
Step 1
To convert degrees to radians, multiply by π180°, since a full circle is 360° or 2π radians.
9°π180° radians
Step 2
Cancel the common factor of 9.
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Step 2.1
Factor 9 out of 180.
9π9(20) radians
Step 2.2
Cancel the common factor.
9π920 radians
Step 2.3
Rewrite the expression.
π20 radians
π20 radians
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°
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7
7
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9
θ
θ
4
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6
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π
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 [x2  12  π  xdx ]