Ask
your own question, for FREE!
Mathematics
4 Online
OpenStudy (anonymous):
Which of the following are solutions to the equation sinx cosx =-1/4? Check all that apply. A.7pi/12+npi B.11pi/12+npi C.7pi/12+npi/2 D.7pi/6+npi
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (arindameducationusc):
what is n?
OpenStudy (anonymous):
I'm not sure, just part of the problem
OpenStudy (arindameducationusc):
Ok got it... wait.
OpenStudy (freckles):
use sin(2x)=2sin(x)cos(x) this is the double angle identity divide 2 on both sides you have 1/2*sin(2x)=sin(x)cos(x) replace sin(x)cos(x) with 1/2*sin(2x)
OpenStudy (arindameducationusc):
I agree with @freckles You will get x=pi/12 Then you can solve for n. Did you get it? Or you need more help
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
I got it. The answer was A and B
OpenStudy (arindameducationusc):
Congrats @melisa1m
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
natalieee:
who else wants a job in biology? I love biomedical science and want to work with
avisshomes:
What should I look for before choosing a co-living space in Gurgaon?
Twaylor:
Time flies doesn't it? I tried to not be the second squeaky wheel of the household and ended up hurting myself and others severely.
clllaaaaaire:
any tips? the quality isn't the best because I am using this site on my computer
Midnight97:
Kinda a roleplay story between me and my friend enjoy... Part one Forgive me for all the screenshots.
StevenisGhost:
what type of song should I make next, and will y'all go check out my new song on
Midnight97:
My drawing sure changed over the years look at these two pictures from 2024 to no
EdwinJsHispanic:
"poem" love is So Beautiful to have. But it's so hard to have. At this point I don't know whether its worth the wait Or if it's just millions of miles to re
EdwinJsHispanic:
"poem" love is So Beautiful to have. But it's so hard to have. At this point I don't know whether its worth the wait Or if it's just millions of miles to re
natalieee:
who else wants a job in biology? I love biomedical science and want to work with
2 hours ago
5 Replies
0 Medals
avisshomes:
What should I look for before choosing a co-living space in Gurgaon?
2 days ago
6 Replies
0 Medals
Twaylor:
Time flies doesn't it? I tried to not be the second squeaky wheel of the household and ended up hurting myself and others severely.
5 days ago
12 Replies
2 Medals
clllaaaaaire:
any tips? the quality isn't the best because I am using this site on my computer
2 weeks ago
2 Replies
0 Medals
Midnight97:
Kinda a roleplay story between me and my friend enjoy... Part one Forgive me for all the screenshots.
3 weeks ago
2 Replies
1 Medal
StevenisGhost:
what type of song should I make next, and will y'all go check out my new song on
2 weeks ago
6 Replies
2 Medals
Midnight97:
My drawing sure changed over the years look at these two pictures from 2024 to no
3 weeks ago
6 Replies
1 Medal
EdwinJsHispanic:
"poem" love is So Beautiful to have. But it's so hard to have. At this point I don't know whether its worth the wait Or if it's just millions of miles to re
3 weeks ago
3 Replies
0 Medals
EdwinJsHispanic:
"poem" love is So Beautiful to have. But it's so hard to have. At this point I don't know whether its worth the wait Or if it's just millions of miles to re
4 weeks ago
0 Replies
0 Medals