Evaluating Trig Functions (Grades 11-12)

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Evaluating Trig Functions

Instructions: Use special triangles, along with the unit circle if needed, to determine the values of sine, cosine, and tangent.

1. 
What is the value of [math] tan (pi/4)[/math]?
  1. [math]1[/math]
  2. [math]sqrt2/2[/math]
  3. [math]sqrt3/2[/math]
  4. [math]2/sqrt2[/math]
2. 
What is the value of [math] sin ((5pi)/4)[/math]?
  1. [math]-1[/math]
  2. [math]-sqrt2/2[/math]
  3. [math]-sqrt3/2[/math]
  4. [math]sqrt2/2[/math]
3. 
What is the value of [math]tan ((7pi)/4)[/math]?
  1. [math]-1[/math]
  2. [math]-sqrt2/2[/math]
  3. [math]1[/math]
  4. [math]sqrt2/2[/math]
4. 
What is the value of [math] sin (pi/6)[/math]?
  1. [math]-1/2[/math]
  2. [math]sqrt2/2[/math]
  3. [math]sqrt3/2[/math]
  4. [math]1/2[/math]
5. 
What is the value of [math] tan (pi)[/math]?
  1. [math]-1/2[/math]
  2. [math]sqrt2/2[/math]
  3. [math]1[/math]
  4. [math]0[/math]
6. 
What is the value of [math] sin (pi/3)[/math]?
  1. [math]1[/math]
  2. [math]sqrt2/2[/math]
  3. [math]sqrt3/2[/math]
  4. [math]2/sqrt3[/math]
7. 
What is the value of [math] sin ((3pi)/2)[/math]?
  1. [math]-1[/math]
  2. [math]sqrt2/2[/math]
  3. [math]1[/math]
  4. [math]1/2[/math]
8. 
What is the value of [math] cos (pi/6)[/math]?
  1. [math]1[/math]
  2. [math]sqrt2/2[/math]
  3. [math]sqrt3/2[/math]
  4. [math]2/sqrt3[/math]
9. 
What is the value of [math] tan ((5pi)/4)[/math]?
  1. [math]-sqrt3/2[/math]
  2. [math]sqrt2/2[/math]
  3. [math]1[/math]
  4. [math]0[/math]
10. 
What is the value of [math] sin ((5pi)/2)[/math]?
  1. [math]-sqrt3/2[/math]
  2. [math]sqrt2/2[/math]
  3. [math]1[/math]
  4. [math]0[/math]

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