### Home > A2C > Chapter 12 > Lesson 12.3.1 > Problem12-133

12-133.

Find the exact value, if possible, for each of the following trig expressions:

1. $\operatorname{tan}\left(0\right)$

0

1. $\operatorname { tan } ( \frac { \pi } { 2 } )$

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1. $\operatorname{tan}\left(π\right)$

Where is this angle on the unit circle?

1. $\operatorname { tan } ( \frac { 3 \pi } { 2 } )$

Where is this angle on the unit circle?

1. $\operatorname{tan}\left(2π\right)$

Where is this angle on the unit circle?

1. $\operatorname{tan}\left(4π\right)$

Where is this angle on the unit circle?

1. Explain each of your answers as it relates the graph of y = tan θ.

What special points do all of these values correspond to?