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Trigonometric Functions

Trigonometric Functions. Sine Cosine Tangent & Right Triangles. General Diagram. q – acute angle measure (theta) o – opposite side a – adjacent side h - hypotenuse. h. o. q. a. The trigonometric functions abbreviations. Sine Sin Cosine Cos Tangent Tan.

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Trigonometric Functions

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  1. Trigonometric Functions Sine Cosine Tangent & Right Triangles

  2. General Diagram • q – acute angle measure (theta) • o – opposite side • a – adjacent side • h - hypotenuse h o q a

  3. The trigonometric functions abbreviations • Sine Sin • Cosine Cos • Tangent Tan

  4. Find the trigonometric ratios chart in the back of your textbook…Look up… • Sin 33° 0.5446 • Cos 59° 0.5150 • Tan 11° 0.1944 • Sin-1 0.9397 70° • Cos-1 0.8988 26° • Tan-1 11.4301 85°

  5. Look up…to find the angle measure • Sin-1 0.5160 closest to 31° • Cos-1 0.1390 closest to 82° • Tan-1 0.9661 closest to 44°

  6. The trigonometric functions o • Sine Sin q = • Cosine Cos q = • Tangent Tan q = h a h o a

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