Terminal side of an angle
lies in standard position coincides with the graph of
in Quadrant III.
Take the point
lies on the line in Quadrant III.
Graph :
\Graph the function
and plot the point
on the curve.

Pythagorean Theorem :
.

Find the six trigonometric ratios using
,
and
.
Trigonometric function :
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Trigonometric function is
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Trigonometric function :
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Trigonometric function is
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Trigonometric function :
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Trigonometric function is
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Trigonometric function :
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Trigonometric function is
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Trigonometric function :
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Trigonometric function is
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Trigonometric function :
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Trigonometric function is
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Trigonometric function is
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Trigonometric function is
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Trigonometric function is
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Trigonometric function is
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Trigonometric function is
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Trigonometric function is
.