# Welcome to College Confidential!

## The leading college-bound community on the web

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:

• Post reviews of your campus visits.
• Find hundreds of pages of informative articles.
• Search from over 3 million scholarships.

#### Top Forums

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

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

• Registered User Posts: 423 Member
Are you sure you typed the question correctly? Because I got -12/5 as my answer.

I think cot(x) is -5/12, which is where you can get answer choice F. But I'm not sure about tan(x).

I'm probably not seeing something correctly...
• Registered User Posts: 34 Junior Member
@AnEpicIndian That's the answer i got too so i'm not sure if the book got it wrong or if i'm missing something
• Registered User Posts: 88 Junior Member
yes, you guys are right. cot(x) = -5/12 and tan(x) = -12/5
• Registered User Posts: 34 Junior Member
edited May 2015
Thanks guys. The book got it wrong then :)
• Registered User Posts: 14,567 Senior Member
edited May 2015
This discussion has been closed.