Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Write the following expression as a function of a positive acute angle.
cos 125
 one year ago
 one year ago
Write the following expression as a function of a positive acute angle. cos 125
 one year ago
 one year ago

This Question is Closed

terenzreignzBest ResponseYou've already chosen the best response.1
@aussy123 It might help you to know that with your angle in degrees, \[\large \cos \ \theta = \sin (90^o  \theta) \]
 one year ago

terenzreignzBest ResponseYou've already chosen the best response.1
So \[\large \cos(125^o)=\sin(90^o  125^o)=\sin(35^o)\]
 one year ago

terenzreignzBest ResponseYou've already chosen the best response.1
It's an identity. It didn't say to use a specific function, it just says use a function.
 one year ago

terenzreignzBest ResponseYou've already chosen the best response.1
I suppose so. You're right :) It stems from the fact that it's equal to sin(35) = sin(35) = cos(90  35)
 one year ago

aussy123Best ResponseYou've already chosen the best response.0
I tried that way too, but I also did cos 125 = cos (180  125) =  cos 55
 one year ago

terenzreignzBest ResponseYou've already chosen the best response.1
Well, as long as your methods are valid, it should be no problem.
 one year ago
See more questions >>>
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.