Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

Easyaspi314 Group TitleBest ResponseYou've already chosen the best response.1
cos^(1) (x) is the inverse of cos x. Its the function on top of the COS button on your calculator.
 11 months ago

johnny101 Group TitleBest ResponseYou've already chosen the best response.0
so the expression f(x)=cos x then have an inverse right? Idk why i second guessed myself
 11 months ago

Easyaspi314 Group TitleBest ResponseYou've already chosen the best response.1
Yes, f(x) = cos x has an inverse. It is called cos^(1)(x).
 11 months ago

Easyaspi314 Group TitleBest ResponseYou've already chosen the best response.1
Thats why, on your calculator, on top of COS it says COS^1..because you use that COS^1 when you want the inverse of cos
 11 months ago

johnny101 Group TitleBest ResponseYou've already chosen the best response.0
alright thankyou
 11 months ago

Easyaspi314 Group TitleBest ResponseYou've already chosen the best response.1
To be very clear about this, if you want the cos of 57 degrees, you type in cos then 57 and you get your answer. If you have an angle whose cosine is .435 and you want the angle, you use COS^1. Becuase you are going in the reverse direction, you are finding the angle (when you know the answer).
 11 months ago

Easyaspi314 Group TitleBest ResponseYou've already chosen the best response.1
welcome.
 11 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.