Ask your own question, for FREE!
Mathematics 10 Online
OpenStudy (anonymous):

find the exact value cos(7pi/8) the answer from the exam review shows the following... -sqrt(2-sqrt(2)/4)

OpenStudy (solomonzelman):

pi is 180, so (7/8) * 180.

OpenStudy (solomonzelman):

157.5

OpenStudy (solomonzelman):

Find the cosine of that.

OpenStudy (anonymous):

wouldnt use the addtion or subtraction cos formula? Made a error it should say "Find the exact solution"

OpenStudy (solomonzelman):

|dw:1383695282299: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!
Latest Questions
VERNEISH: Two objects are moving along separate linear paths where each path is described by position, d, and time, t.
2 hours ago 0 Replies 0 Medals
Arriyanalol: i need help
20 hours ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
23 hours ago 8 Replies 2 Medals
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
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Maci: what is your thoughts on qc reaching 10years lmk who the ogs
1 week 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
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
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!