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The Trigonometric Functions

The Trigonometric Functions. SIN E. COS INE. TAN GENT. Parts of a Right Triangle. Vocabulary. B. HYPOTNUSE. LEG. C. A. LEG. Parts of a Right Triangle with 1 Given Angle. B. . C. A. HYPOTNUSE. Opposite. Adjacent. hypotenuse. hypotenuse. opposite. opposite. A. adjacent.

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The Trigonometric Functions

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  1. The Trigonometric Functions SINE COSINE TANGENT

  2. Parts of a Right Triangle Vocabulary B HYPOTNUSE LEG C A LEG

  3. Parts of a Right Triangle with 1 Given Angle B  C A HYPOTNUSE Opposite Adjacent

  4. hypotenuse hypotenuse opposite opposite A adjacent adjacent

  5. Or there’s the famous Indian Chief, Chief SOH CAH TOA Sin = Opp/Hyp Cos = Adj/Hyp Tan = Opp/Adj

  6. Finding sin, cos, and tan.(Just writing a ratio or decimal.)

  7. Find the sine, the cosine, and the tangent of angle A. Give a fraction and decimal answer (round to 4 places). 10.8 9 A 6 Shrink yourself down and stand where the angle is. Now, figure out your ratios.

  8. Find the sine, the cosine, and the tangent of angle A 24.5 Give a fraction and decimal answer (round to 4 decimal places). 8.2 A 23.1 Shrink yourself down and stand where the angle is. Now, figure out your ratios.

  9. Calculator time MODE • On your calculator, hit and third one down, make sure it is in “Degree” mode. If not, move over it and hit ENTER.

  10. Calculator TIME • Cos 76 degrees = • Sin 8 degrees =

  11. 8 32o y x Finding missing sides adj SOH CAH TOA Find x, two sides to use are hyp (H) and adj (A) hyp opp Use CAH (Cos)

  12. 8 32o y x Finding missing sides adj SOH CAH TOA Find y, two sides to use are opp (O) and adj (A) hyp opp Use TOA (Tan)

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