pleeeease help me!!
tan x=7/24 , x Є [π,3π/2]

cos (x/2) =??
sin (x/2) =??
tan (x/2)= ??

Question

pleeeease help me!! 
tan x=7/24 , x Є [π,3π/2] 

cos (x/2) =?? 
sin (x/2) =??
tan (x/2)= ??

anonymous · Answer

Are you using radians or degrees?

summersnow8 · Answer

im in degree mode, but the answers are suppose to have sqrts in them

anonymous · Answer

k one sec.

anonymous · Answer

Is it multiple choice?

summersnow8 · Answer

no, i now the answer, I just dont know how to get it

summersnow8 · Answer

know*

anonymous · Answer

Can you type to full question? Or is that it?

summersnow8 · Answer

that is the question

anonymous · Answer

hmm well... I'm gonna need help lol One sec.

anonymous · Answer

@amistre64 @tcarroll010 
 Got time to help?

anonymous · Answer

Or, @Luigi0210  :P

luigi0210 · Answer

Use the half-angle formula?

anonymous · Answer

I doubt that would work but I don't know...

luigi0210 · Answer

Naw, I think @tcarroll010 would be more helpful than me.

summersnow8 · Answer

answers i was given:

sin (x/2) = 7 sqrt(2)  / 10 

cos (x/2)= sqrt(2) / 10

tan(x/2)= -7

amistre64 · Answer

|dw:1372271135713:dw|

luigi0210 · Answer

If I remember correctly anything over 2 in a trig function means half-angle..

summersnow8 · Answer

yeah i have tried using a triangle, and the half angle identity, but i cant seem to get the right answers when solving

anonymous · Answer

Just curious, what class is this for?

summersnow8 · Answer

trig

anonymous · Answer

Wow... lol I'm only in Algebra 2... Probably why I'm not much help. :P

anonymous · Answer

I saw cos sin and tan and thought I might be able to do it but I obviously haven't gotten that far. :P

amistre64 · Answer

|dw:1372271248514:dw|