If
and x lies in Quadrant III, find the values of cos x and cot x.
Given: ![]()
To find: cos x and cot x

Since, x is in IIIrd Quadrant. So, sin and cos will be negative but tan will be positive.
We know that,
sin2 x + cos2 x = 1
Putting the values, we get
[given]
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Since, x in IIIrd quadrant and cos x is negative in IIIrd quadrant
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Now,
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Putting the values, we get

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= 2√6
Now,
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Putting the values, we get
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Hence, the values of other trigonometric Functions are:

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