Question

cos7pi/6

Answer 1

\[\pi = 180~~ degrees\]

Answer 2

- (sqrt3)/2

Answer 3

cos(7 pi/ 6) =
cos(210)=
cos(180+30)

Answer 4

use you rule, cos(a+b)=cos(a)cos(b)+sin(a)+sin(b).

Answer 5

your rule, lol.

Answer 6

reply, please, we want you to be engaged in problem solving...

Answer 7

You can also think of \(cos(7\pi/6)\) as \(cos(\pi+\pi/6)\)
and bring to the story that cos have a period of 2pi

Answer 8

lol put a \ in front of the cos

Answer 9

1) click ALT and hold it.
2) click 9 2 on the number pad on the bottom left sorner
3) release ALT.

you get \

Answer 10

@xapproachesinfinity ;)

Answer 11

(if your NumLck is off, it should still work)

Answer 12

NumLock*

Answer 13

hmm never tried that
why do I need alt i have \ without all that?

Answer 14

where?

Answer 15

/ ohh, I see.

Answer 16

in the keyboard i never did any alt i just click on it
\(\cos(x)\)

Answer 17

not all keyboards have it.mine on the other computer doesn't have it.

Answer 18

hmm i see it is different than just cos without \

Answer 19

yes, cos without it becomes cursive.

Answer 20

oh i see!

Answer 21

but there a problem when i try cosx it doesn't appear

Answer 22

i have to do parenthesis first

Answer 23

you should have a space betwen the cos and x.

Answer 24

oh i see

Answer 25

yes:D

Answer 26

\(\sin x \) cool:)

Answer 27

yes:)

Answer 28

the parenthesis, without equation editor, fail to work by defnitnie integrals, sigma notation, and the limit x-> something appreas next, not below.

Answer 29

I mean the arrow, in a limit is off in parenthesis.

Answer 30

yah right! the arrow does not go bellow lim hehe
but the equation editor sometimes doesn't work lol

Answer 31

there are times, when it doesn't but it is only bad, as you noticed that it can be typed in-text-:(

Answer 32

yes :)
i still need to learn a lot of stuff about this latex hehe
like tables

Answer 33

also, sometimes there is a latex glitch, but equation editor indefite integrals also look much neater... andf anyways, I got to go...

Answer 34

I can give you any advie when I am here.
if you want, I'll put up a tutorial:)

Answer 35

advice*

Answer 36

I got to go now, it's almost 12:00 Am in my location. See you:)

Answer 37

Okay next time then
Thanks for the tips :)

Answer 38

(atlanta Ga)... bye.

Answer 39

yw

Answer 40

see ya later ^_^
here it is 12:00 as well
Jersey city nj

Answer 41

bye