Trigonometry Examples

Find the Tangent Given the Point (12,-9)
Step 1
To find the between the x-axis and the line between the points and , draw the triangle between the three points , , and .
Opposite :
Adjacent :
Step 2
therefore .
Step 3
Simplify .
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Step 3.1
Cancel the common factor of and .
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Step 3.1.1
Factor out of .
Step 3.1.2
Cancel the common factors.
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Step 3.1.2.1
Factor out of .
Step 3.1.2.2
Cancel the common factor.
Step 3.1.2.3
Rewrite the expression.
Step 3.2
Move the negative in front of the fraction.
Step 4
Approximate the result.