Ask
your own question, for FREE!
Mathematics
11 Online
Find the exact value of the trigonometric function. (If an answer is undefined, enter UNDEFINED.) cos 390°
Still Need Help?
Join the QuestionCove community and study together with friends!
you can type in cos(390) into your calculator alternatively, you can type in cos(30) because 390-360 = 30 is your reference angle (the angle is in quadrant 1)
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
Maci:
what are the best stock apps for people who want to start investing?
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
3 days ago
3 Replies
2 Medals
6 days ago
3 Replies
0 Medals
1 day ago
9 Replies
1 Medal
1 week ago
2 Replies
1 Medal