Mathematics
18 Online
OpenStudy (anonymous):
Trigonometric Proofs!
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (misty1212):
HI!!
OpenStudy (anonymous):
Hi again!
OpenStudy (misty1212):
more algebra?
OpenStudy (anonymous):
Alright so basically what I have is half way through the equation I am very stuck. Ill send what I have so far
OpenStudy (misty1212):
ok
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
so the original equation is; 1+cos (u)/ sin (u)= sin (u)/ 1-cos (u)
OpenStudy (anonymous):
and I used the conjegate on the right side
OpenStudy (anonymous):
to get it to; sin(1+cos (u))/1-cos^2
OpenStudy (misty1212):
lol what was the original question??
OpenStudy (misty1212):
oh nvm i see it
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (misty1212):
jeez passive aggressive much?
OpenStudy (misty1212):
it's all yours dear
OpenStudy (anonymous):
...
OpenStudy (anonymous):
Yeah I think he left
OpenStudy (misty1212):
ok lets go
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (misty1212):
oh lol you are done!!
OpenStudy (anonymous):
so I now I have \[\frac{ \sin (u) (1+\cos (u)) }{ 1-\cos^2 }\]
OpenStudy (anonymous):
I am?
OpenStudy (misty1212):
yeah right
OpenStudy (misty1212):
since
\[\sin^2(x)+\cos^2(x)=1\] you know \[1-\cos^2(x)=\sin^2(x)\]
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
oh yeah! ahhh I always forget to check for identities oh jeez
OpenStudy (misty1212):
replace the denominator by \(\sin^2(x)\) and cancel a sine and go have a snack
OpenStudy (anonymous):
yup then cancel :D
OpenStudy (anonymous):
Thank you xD
OpenStudy (misty1212):
\[\color\magenta\heartsuit\]
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
You still here? I have a tough one.