A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
anonymous
 one year ago
If cos x = .75, what is sin x?
0.87
0.75
0.66
0.69
anonymous
 one year ago
If cos x = .75, what is sin x? 0.87 0.75 0.66 0.69

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so you have to solve for x and then plug that value into the sin(x) function

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0looks like they want the answer to be positive. sin(x) = sqrt(1  cos^2(x))

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do sqrt(1  (0.75)^2)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would be 0.66?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0actually i think its just a simple arccos question \[\cos(x) = .75\] \[x = \cos^1(.75)\] and then plug that value into sin(x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but either way you get the same answer .661
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.