math question.

[A.D.A.M]

whats the domain and range of f(x)=cos x

[Guest]

Domain: (-infinity,infinity)

Range: [-1,1]

 

i think this is correct.

 

Having fun with trig function I see

[AlwaysFSX]

According to Wolfram Alpha...

D: all real numbers

R: -1<=y<=1

 

This sounds about right..

[A.D.A.M]

Domain: (-infinity,infinity)

Range: [-1,1]

 

i think this is correct.

so its basically the cos graph

[Aniallation]

Domain: (-infinity,infinity)

Im pretty sure if Domain is infinity then it's supposed to be

 

Domain = {ER} 

 

(all real numbers)

[AlwaysFSX]

so its basically the cos graph

Well that's essentially what it is...

[Guest]

so its basically the cos graph

Correct.  A graph of cos goes infinity in both directions and it highest and lowest point are 1 and -1. 

[A.D.A.M]

Well that's essentially what it is...

well derp

[Guest]

Im pretty sure if Domain is infinity then it's supposed to be

 

Domain = {ER} 

 

(all real numbers)

It means the exact same thing.

[SimpleG]

Download Photo math if on windows pgone/iPhone 

[AlwaysFSX]

well derp

Someone needs to pay more attention in school...

[A.D.A.M]

Domain: (-infinity,infinity)

Range: [-1,1]

 

i think this is correct.

 

Having fun with trig function I see

We have a test coming up

[Guest]

We have a test coming up

They are really easy once you understand what they are saying.

[A.D.A.M]

Someone needs to pay more attention in school...

i might have forgotten that little titbit (the cos graph i mean) summer did not do me any favors

[AlwaysFSX]

i might have forgotten that little titbit (the cos graph i mean) summer did not do me any favors

Yeah well I've been on summer break since the end of May..

 

My brain has literally turned to mush.

[A.D.A.M]

Yeah well I've been on summer break since the end of May..

 

My brain has literally turned to mush.

After my IGCSE Math my brain defragged itself and formatted