Question

Determine two coterminal angles in radian measure (one positive and one negative) for each angle.

a. 7pi/8
b. 8pi/45

Answer 1

Do you know what a co-terminal angle is?

Answer 2

not at all :O

Answer 3

Maybe we should figure that out first then xD

Answer 4

that sounds like a plan! :p

Answer 5

But it's basically adding/subtracting \(2 \pi/360^○\)
http://hotmath.com/hotmath_help/topics/coterminal-angles.html

Answer 6

so would it be 7pi +2pi first?

Answer 7

\[\LARGE \frac{7 \pi}{8}\pm2 \pi\]
Yes~

Answer 8

I got 23pi/8 and -9pi/8... sound about right?

Answer 9

And you would be correct Miss Ali~

Answer 10

Now do the same for the second.

Answer 11

so that would be for a. so b. would be -82pi/45 and 98pi/45?

Answer 12

And you're done :)

Answer 13

thanks so much!!! :D