Help with graphing Trig Functions

Question

darkbluechocobo · Answer

attachment

myininaya · Answer

what question do you have about the graph ?

darkbluechocobo · Answer

How do you find if that graph is equal to it.

xapproachesinfinity · Answer

hmm that for sure the graph of $$\rm f(x)=\cos\theta, ~~\theta \in[-\pi,\pi]$$

darkbluechocobo · Answer

is that one of the points

xapproachesinfinity · Answer

no what is your question? i thought 
your question is ambiguous??

darkbluechocobo · Answer

so this would be true Looking at the graph If i am correct because it stops before -pi and pi

xapproachesinfinity · Answer

i don't know what you are looking for?

darkbluechocobo · Answer

Oh it is a true or false question

xapproachesinfinity · Answer

all i told you is the graph you are giving is cos graph from -pi to pi

xapproachesinfinity · Answer

if they asked wether the graph is for cos from -pi to pi 
then the answer is true

xapproachesinfinity · Answer

pls next time make sure you post everything
ambiguity in a question will not help you
try to post all the info given to you exactly like its written

xapproachesinfinity · Answer

understanding what need to do is key to solving any problem in math