##### Notes

This printable supports Common Core Mathematics Standard HSF-TF.A.3

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