A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
anonymous
 one year ago
Find cos theta if sin theta =5/13 and tan theta>0
anonymous
 one year ago
Find cos theta if sin theta =5/13 and tan theta>0

This Question is Closed

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[\sin^2(x)+\cos^2(x)=1 \\ (\sin(x))^2+(\cos(x))^2=1\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1replace sin(x) with 5/13

freckles
 one year ago
Best ResponseYou've already chosen the best response.1since tangent is positive and sine is negative then cosine is also negative.

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[(\frac{5}{13})^2+(\cos(x))^2=1\] do you know how to solve this equation for cos(x)?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1yes that is what we need to do
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.