Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
hkmiu
Group Title
cos(arctan(sqrt3/7))??
http://media.education2020.com/evresources/64907060000_files/i0200000.jpg
 10 months ago
 10 months ago
hkmiu Group Title
cos(arctan(sqrt3/7))?? http://media.education2020.com/evresources/64907060000_files/i0200000.jpg
 10 months ago
 10 months ago

This Question is Closed

hkmiu Group TitleBest ResponseYou've already chosen the best response.0
\[\cos(\arctan (\frac{ \sqrt{3} }{ 7 })) \]
 10 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
Let the inside be called a. arctan(sqrt(3)/7)=a then use the fact that tan is the inverse of arctan to rewrite that as tan(a)=sqrt(3)/7 Draw a right triangle and put these measurements in their proper place. You should see that one measurement for one leg is missing. You can use the Pythagorean thm for that. Then find cos(a) and that is your answer.
 10 months ago

hkmiu Group TitleBest ResponseYou've already chosen the best response.0
Oh okay, thank you !!! :D
 10 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
Ok. Well if you have anymore questions here on this problem don't be afraid to ask.
 10 months 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.