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Mathematics
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The value of sine, cosine and tangent
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Point P is in quadrant I

A point is in quadrant II

A point is in quadrant III

A point is in quadrant IV
Positive or negative value for quadrant I
Positive or negative value for quadrant II
Positive or negative value for quadrant III
Positive or negative value for quadrant IV
Steps to determine the value of sine, cosine and tangent for angles in quadrants II, III and IV
1. Determine the corresponding reference angle 2. Determine positive or negative sign for sine, cosine and tangent for angles in quadrants II, III and IV
Steps to determine the angle when the value of sine, cosine and tangent are given
1. Identify the quadrant 2. Determine the corresponding reference angle. 3. Calculate the angle based on the quadrant identified.
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