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Trigonometric Ratios in the Unit Circle. 6 December 2010. Trigonometric Ratios in the Unit Circle. The unit circle has a radius of 1. Trigonometric Ratios in the Unit Circle, cont. The tangent and cotangent formulas stay the same. “ A ll S tudents T ake C alculus”. S. A.
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Trigonometric Ratios in the Unit Circle 6 December 2010
Trigonometric Ratios in the Unit Circle • The unit circle has a radius of 1
Trigonometric Ratios in the Unit Circle, cont. • The tangent and cotangent formulas stay the same
“All Students Take Calculus” S A sine is positive all functions are positive T C tangent is positive cosine is positive
Special Right Triangles 30-60-90 45-45-90 45° 60° 30° 45°