Ask
your own question, for FREE!
Mathematics
26 Online
OpenStudy (anonymous):
evaluate cos((15pi)/4) using its period as an aid. I'm stumped... It has been five years since my last trig class...
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
you basicly just look at the unit circle and use pi/4 as your reference point and keep going around the circle evaluating all the pi/4 reference points until you get to 15pi/4...if that makes since
OpenStudy (anonymous):
thank you so much you god among men
OpenStudy (anonymous):
lol you welcome
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
DoltonCarlee:
So like do y'all know anything about the first world war?
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
13 minutes ago
2 Replies
0 Medals
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
25 minutes ago
1 Reply
0 Medals
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
1 hour ago
10 Replies
0 Medals
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
8 minutes ago
5 Replies
0 Medals
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
22 hours ago
10 Replies
2 Medals
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
2 days ago
6 Replies
1 Medal
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
4 days ago
0 Replies
0 Medals
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
4 days ago
2 Replies
1 Medal
DoltonCarlee:
So like do y'all know anything about the first world war?
2 days ago
2 Replies
0 Medals
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
3 days ago
5 Replies
2 Medals