Ask
your own question, for FREE!
Mathematics
18 Online
OpenStudy (anonymous):
Cos3x/cosx
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (gorv):
\[\cos3x= 4\cos^3x - 3cosx\]
OpenStudy (gorv):
\[\frac{ 4\cos^3x - 3cosx }{ cosx }=\frac{ cosx*(4\cos^2x - 3) }{ cosx }=4\cos^2x - 3\]
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
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
notmeta:
If \(P(A) = 0.4\), \(P(B) = 0.7\), and \(P(A \cap B) = 0.2\), what is the value o
Wolfwoods:
"Ich liebe dich u2013 aber wu00fcrdest du mich jemals zuru00fccklieben? Wu00fcrde
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
23 hours ago
4 Replies
0 Medals
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
1 day ago
6 Replies
2 Medals
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
1 day ago
11 Replies
3 Medals
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
2 days ago
7 Replies
2 Medals
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
2 days ago
4 Replies
1 Medal
notmeta:
If \(P(A) = 0.4\), \(P(B) = 0.7\), and \(P(A \cap B) = 0.2\), what is the value o
3 days ago
9 Replies
3 Medals
Wolfwoods:
"Ich liebe dich u2013 aber wu00fcrdest du mich jemals zuru00fccklieben? Wu00fcrde
3 days ago
8 Replies
2 Medals