Ask
your own question, for FREE!
Mathematics
11 Online
OpenStudy (anonymous):
Please help! Find cos x if sin^2 x-1/ cos x =-1
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
This will help you: https://www.wolframalpha.com/input/?i=sin^2+x-1%2F+cos+x+%3D-1
OpenStudy (solomonzelman):
\(\large\color{black}{ \sin^2 x-1=-\cos^2x }\)
OpenStudy (solomonzelman):
another thing: -cos^2x / cosx = -cosx
OpenStudy (anonymous):
Is that it or do I solve it?
OpenStudy (solomonzelman):
|dw:1417547488050:dw|
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
Maci:
what are the best stock apps for people who want to start investing?
3 days ago
3 Replies
2 Medals
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
6 days ago
3 Replies
0 Medals
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
1 day ago
9 Replies
1 Medal
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
1 week ago
2 Replies
1 Medal
