A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Amistre64, are you out there? I need help! the question is: find the absolute maximum and minimum values of the function in given interval. f(theta)=cos theta 2less than or equal to theta less than or equal to 3pi/4.
anonymous
 5 years ago
Amistre64, are you out there? I need help! the question is: find the absolute maximum and minimum values of the function in given interval. f(theta)=cos theta 2less than or equal to theta less than or equal to 3pi/4.

This Question is Closed

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1im out here somewhere in the eternal ether :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Actually, i typed some of that wrong. It's the interval of 2pi less than or equal to theta less than or equal to 3pi/4

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1its a simple cos function.... nothing modifying it so it should be easy for us to accomplish :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Just fyi i know NOTHING about converting thetas to square roots.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.12pi to 0 has a max at 0; a max at 2pi and a min at pi this is just pointing out where the graph bends at between 2pi and 3pi/4 which i went a little far

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.12pi = max  pi = min and that all you get in that interval

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I don't get it. Where are the max and min values in that? I know nothing abou this!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1the cosine graph is just a wave that bounces between 1 and 1

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1at 0 or any even multiples of pi; cos(x) = 1 at pi or any odd multiples cos(x) = 1

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How did you figure that out? What is the actual value of the max at 2pi? and pi? Aren't they like answers in terms of square roots or pi or something?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1we could take the derivative which is sin(x) but that doesnt help out much unless you know the graph for it as well :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1nah; the max of cos(x) = 1 the min of cos(x) = 1

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1cos(2pi) = 1 cos(pi) = 1

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1thats just the definition for cosine...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1Dx(cos(x)) = sin(x) sin(x) = 0 at..... 2pi, and pi in between [1pi,3pi/4]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, here's how they want the answer and I can't figure out what you are telling me. They want "Absolute maximum is ____ at theta=_____

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Then "Absolute minimum is ____ at theta=____"

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1absolute min = 1 at pi

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1absolute max = 1 at 2pi

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Bless you, dear. But HOW DO YOU KNOW THIS? is there a table of values? I just started this in calculus, and I am sure i will need it in the future, and unless you want to take my next calc exam... seriously where i find the equations for this? Like what does sin(5pi/3 equal? Where do I find those values or is there a conversion with a formula?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1its from trig class; trig is just memorizing angles and sin cos tan stuff

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok but where do you find the angles to memorize? Like i said, is there a table or something? A formula? What? there has to be some way to figure this out!!!!!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1yeah, look up 'trig tables' and 'trig graphs' in google; theyll give you alot to pick from :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, btw, not that you doubted your brain power or anything, but of course you were right and figured out in 3 seconds what i have been trying to figure out for literally 43 hours. 1 problem...3 hours??? I can't do that for 50 problems!!! These tables will help?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i did not mean 43 hours, i meant 3

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1:) they will help. And when i dont use trig for a while im bound to forget them ;)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0do you do this math stuff for fun? because you love it so much? you must because you don't get paid to help dummies like me!!! ; )

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1lol... i do enjoy math; its the one constant in my life :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yay for you. i enjoy it too, more on the algebra end, but i am not good at it naturally; I struggle to learn it. Trying to take a calc course online is like literally teaching myself everything there is to know about calc! Not sure I will be as successful as you are at it!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1ive taught myself up to about calc4 so far; its easy once you get past the tedium of limits and longhand version of derivatives and integrals

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1well, derivatives are pretty straight forward; integrals can be tricky because its more art than science

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh my gosh. I could only wish to be that smart! Thank you so much! I don't know wht time it is there, but it is almost 3 am here in Illinois and I have to be up with the kids in like 3 hours1 This math will literally be the death of me! Thank you thank you thank you again and again! I'm sure i will talk to to you VERY soon. Rachel.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Good night, and thanks again.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1Nite , im in florida ;)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So its like almost 4 am there!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1illinois is one of them mormon states i believe

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1330am if the computer is right ;)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes it is it's 2:30 here. crazy!
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.