Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

If cosx=3/5 and 0

OpenStudy (zzr0ck3r):

Do you know soh cah toa?

OpenStudy (arindameducationusc):

tan 2x= 2tanx/1-tan(^2)a

OpenStudy (arindameducationusc):

tan3x=3tanx=tan^3x/1-3tan^x

OpenStudy (arindameducationusc):

The above was for Question 2

OpenStudy (arindameducationusc):

For Question 1, sinx=1-cos(^2)x and Sin(A-B)=sinAcosB-cosAsinB

OpenStudy (arindameducationusc):

This was for question1

OpenStudy (anonymous):

It says without using a calculator I know these formulae but I don't think they will be used here Can please solve it detailed Thanks

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.
22 hours ago 0 Replies 0 Medals
Arriyanalol: i need help
1 day ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
1 day ago 8 Replies 2 Medals
Maci: what are the best stock apps for people who want to start investing?
4 days ago 3 Replies 2 Medals
Twaylor: genuienly how do i get better self control i keep watcing youtube and theres this
1 week 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
2 days 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!