Question

Picture is attached PLEASE show me how to solve this.

Answer 1

wow direct to my "bad math" file
questions written by moron math teachers to confuse students!

Answer 2

the x axis is given in terms of numbers (radians if you prefer) as it should be, but the answers are given in terms of degrees!!!

Answer 3

huh lolz i was frusted cuz of colors but the rest is not bad at all :P

Answer 4

lord help you
tell your math teacher this question was written by a fool who knows nothing
in any case you are being asked where the graph crosses the \(x\) axis
you can see it is at \(\frac{\pi}{2}+n\pi\)

Answer 5

but for some reason you are supposed to say \(90+n180\)

Answer 6

ya thats what i dont get

Answer 7

really this will go right to the top when i publish my book of bad math questions
sorry about your bad education, it is not your fault

Answer 8

The technical term for this is: "units switcharoo".

Answer 9

just go with \(90+n\times 180\)

Answer 10

or as they write
\[90+180n\]

Answer 11

ok thanks but how did you know it was that one though?

Answer 12

because if you convert from radians to degrees, \(\frac{\pi}{2}\) converts to \(90\) and \(\pi\) becomes \(180\)

Answer 13

thus forever confusing you
if you work with numbers, numbers should be all you need, not "degrees" or "radians" or "dollars" or Fahrenheit" or whatever

Answer 14

Oh ok thanks

Answer 15

yw

Answer 16

ya i am learning this on my own through an online class with no teacher and i have figure out how to do it on my own half the time because it doesn't explain it very well...

Answer 17

yeah another scam, "on line learning" wish i had cached in on that one
if you want to actually learn math, insist on going to and actual school with actual teachers
there is no substitute

Answer 18

I do go to school im out for the summer but i wanted to get caught up on math so i took this online class to do it.