A community for students.
Here's the question you clicked on:
 0 viewing
softballislove3
 2 years ago
Find cos θ if sin θ = 5/13 and tan θ > 0.
softballislove3
 2 years ago
Find cos θ if sin θ = 5/13 and tan θ > 0.

This Question is Closed

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1If sine is negative and tangent is positive, then cosine is ____?____ tangent=sine/cosine=negative/cosine=positive =>cosine is ___?____

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1So negative/positive is positive No...

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.1no its negative

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Right. You want tangent to be positive not negative

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1So you need cosine to be negative in order for tangent to be positive since sine is negative.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1So we are in the (,) quadrant.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1351269639105:dw \[\sin( \theta)=5/13 \text{ is given to you} \]

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.1so then use pythagorean theorem to fine cosine

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Find the other side using the Pythagorean thm.

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.1which would end up being 12/13

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1the other side is 12 is what you are saying and no i thought you were looking for cosine...

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1oops I labeled the triangle wrong a little bit.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1351270002298:dw

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1And you will be correct. :)

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1351270017306:dw
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.