The value of the exact trigonometric ratio of the given radian angle:
The exact trigonometric ration of the
Trigonometric ratios are given by the following formula:
The given value of radian is . It is negative angle value that means the rotation is measured from the axis as clockwise direction.
In one full rotation the angle is . And the relation between the degree and radian is shown by below expression:
Now, rewrite the given angle in the standard position:
Thus, the given angle measures angle or it is of the half revolution from the positive axis.
This angle is drawn as below:
Here, the triangle is fixed at terminal and
Therefore, trigonometric ratios are given as:
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