QUADRANT I THE UNIT CIRCLE. REMEMBER Find the length of the missing side: 1 1 1 x y x y x y Aim: Use the unit circle in order to find the exact value.

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Presentation transcript:

QUADRANT I THE UNIT CIRCLE

REMEMBER Find the length of the missing side: x y x y x y Aim: Use the unit circle in order to find the exact value of a trigonometric expression.

THE UNIT CIRCLE Draw a circle whose center at the origin, (0, 0), and has a radius of Aim: Use the unit circle in order to find the exact value of a trigonometric expression.

QUADRANT I 30° (, ) 1 45° (, ) 1 60° (, ) 1 1 Aim: Use the unit circle in order to find the exact value of a trigonometric expression. Place Special Triangles into the first quadrant of the Unit Circle then label the points created.

Soh Cah Toa: Aim: Use the unit circle in order to find the exact value of a trigonometric expression.

CRITICAL ANGLE TABLE 0°30°45°60°90° Sin Cos Tan Aim: Use the unit circle in order to find the exact value of a trigonometric expression.

EXACT VALUE The drawing of the Unit Circle (first quadrant) or the table just created can be used to find the exact value of the following trigonometric expression: Find the exact value of Aim: Use the unit circle in order to find the exact value of a trigonometric expression.