Welcome to College Confidential!

The leading college-bound community on the web

Sign Up For Free

Join for FREE, and start talking with other members, weighing in on community discussions, and more.

Also, by registering and logging in you'll see fewer ads and pesky welcome messages (like this one!)

As a CC member, you can:

  • Reply to threads, and start your own.
  • Post reviews of your campus visits.
  • Find hundreds of pages of informative articles.
  • Search from over 3 million scholarships.
Please take a moment to read our updated TOS, Privacy Policy, and Forum Rules.
While general discussion about the ACT test is allowed by ACT, discussion of test questions may violate your agreement with ACT. Please be thoughtful in your posts and replies.

ACT Trig Problem

reDIOSreDIOS Registered User Posts: 34 Junior Member
I'm a sophomore practicing for the act using the PR Cracking the ACT. There is a trig problem that is confusing me very much.
For x, an angle whose measure is between 270 and 300 degrees, cosx = 5/13. Which of the following equals to tan x?

F. -5/12
G. -5/13
H. 5/13
J. 5/12
K. 12/13

Turns out that the answer is F, but i don't understand the explanation that Princeton review gives. I get that it is a negative degree, but i'm lost from there. Thanks :)

Replies to: ACT Trig Problem

This discussion has been closed.