Ask
your own question, for FREE!
Mathematics
22 Online
OpenStudy (anonymous):
so my problem is: cos(-pi/12) and i change it to cos2(-pi/6)=2sin(-pi/6)cos(-pi/6) and i end up with (-root6/4) and i keep getting told that the answer is wrong. Any hints on what i should do?/:
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
you are using wrong double angel formula for cos(2x)
OpenStudy (anonymous):
oh wow. the stress is really hitting me hard this time lol. thank you!:)
OpenStudy (anonymous):
no prob
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
hamnakahlid:
mixture placed in an Erlenmeyer flask comprises 6mL of silica gel and 40mL of a solvent containing, in solution, 100 mg of a non-volatile compound.
AddieroniAndCheese:
Use the table of electronegativities to rank the following bonds according to polarity.
Suicidals:
I met someone I very much love, when I think about them I think of doves, she is also very kind, she can probably blind me with her beauty, She is very uniq
KBaby:
(Verse 1) Underneath the swings, where the shadows play, We were kings and queens, lost in yesterday.
summerhottie331:
have u guys gotten a tablet from amazon and is it good? and which one?
hamnakahlid:
mixture placed in an Erlenmeyer flask comprises 6mL of silica gel and 40mL of a solvent containing, in solution, 100 mg of a non-volatile compound.
39 minutes ago
0 Replies
0 Medals
AddieroniAndCheese:
Use the table of electronegativities to rank the following bonds according to polarity.
1 hour ago
1 Reply
0 Medals
Suicidals:
I met someone I very much love, when I think about them I think of doves, she is also very kind, she can probably blind me with her beauty, She is very uniq
5 hours ago
1 Reply
1 Medal
KBaby:
(Verse 1) Underneath the swings, where the shadows play, We were kings and queens, lost in yesterday.
6 hours ago
4 Replies
0 Medals
summerhottie331:
have u guys gotten a tablet from amazon and is it good? and which one?
14 hours ago
26 Replies
2 Medals