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Trigonometric Functions: The Unit Circle. Section 4.2. Objectives. Find a point on the unit circle given one coordinate and the quadrant in which the point lies. Determine the coordinates of a point on the unit circle given a point on the unit circle.

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## Trigonometric Functions: The Unit Circle

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**Trigonometric Functions: The Unit Circle**Section 4.2**Objectives**• Find a point on the unit circle given one coordinate and the quadrant in which the point lies. • Determine the coordinates of a point on the unit circle given a point on the unit circle. • State the sign of the sine or cosine value of an angle based on the quadrant in which the terminal side of an angle occurs. • State the sine and cosine values of an angle (measured in radians) where the angles have a measure of**Objectives**• Determine the tangent, cotangent, secant, and cosecant values of an angle given a point on the unit circle. • State the sign of the tangent, cotangent, secant, and cosecant value of an angle based on the quadrant in which the terminal side of an angle occurs. • Determine the tangent, cotangent, secant, and cosecant values of an angle (measured in radians) where the angles have a measure of**Vocabulary**• quadrant • sine of an angle • cosine of an angle • terminal side of an angle • initial side of an angle • tangent of an angle • cotangent of an angle • secant of an angle • cosecant of an angle**If the point is on the unit circle in quadrant IV,**then find y.**If P(t) has coordinates (0.141, 0.99), find the coordinates**of each point indicated below.**Find the terminal point P(x, y) on the unit circle**determined by the value of

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