How to find terminal side

To find a coterminal angle, you must rotate the terminal side in a complete circle. Simply take your original angle and add or subtract 360°. [3] The formula can be written as

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Find the value of the sine or cosine functions of an angle given

In this way we arrive at a point P (x, y) on the unit circle. The point P (x, y) obtained in this way is called the terminal point determined by the real number t. Terminal Point P (x, y) Determined by t > 0 : Terminal Point P (x, y) Determined by t