N noork85 Mar 2012 124 1 nyc Apr 19, 2012 #1 hello u math brainiacs (Cool) i need help! how do i go about determining which quadrant the angle lies in? ex) -5pi/6 please explain thoroughly so i can take notes and as easy as possible because i tried and cant figure it out. thanks!

hello u math brainiacs (Cool) i need help! how do i go about determining which quadrant the angle lies in? ex) -5pi/6 please explain thoroughly so i can take notes and as easy as possible because i tried and cant figure it out. thanks!

P Plato MHF Helper Aug 2006 22,492 8,653 Apr 19, 2012 #2 noork85 said: how do i go about determining which quadrant the angle lies in? ex) -5pi/6 Click to expand... \(\displaystyle \frac{-5\pi}{6}\) is equivalent to \(\displaystyle \frac{-5\pi}{6}+2\pi=\frac{7 pi}{6}\). \(\displaystyle \frac{7 pi}{6}\in III\) WHY?

noork85 said: how do i go about determining which quadrant the angle lies in? ex) -5pi/6 Click to expand... \(\displaystyle \frac{-5\pi}{6}\) is equivalent to \(\displaystyle \frac{-5\pi}{6}+2\pi=\frac{7 pi}{6}\). \(\displaystyle \frac{7 pi}{6}\in III\) WHY?

N noork85 Mar 2012 124 1 nyc Apr 19, 2012 #3 so thats it? just find the equivalent and then locate that equivalentbon on the unit circle?

N noork85 Mar 2012 124 1 nyc Apr 19, 2012 #4 and what about -11pi/9 i got the answer as 7pi/9 cant locate that on the unit circle...

P Plato MHF Helper Aug 2006 22,492 8,653 Apr 19, 2012 #5 noork85 said: and what about -11pi/9 i got the answer as 7pi/9 cant locate that on the unit circle... Click to expand... Well \(\displaystyle \frac{1}{2}<\frac{7}{9}<1\) so it is in II.

noork85 said: and what about -11pi/9 i got the answer as 7pi/9 cant locate that on the unit circle... Click to expand... Well \(\displaystyle \frac{1}{2}<\frac{7}{9}<1\) so it is in II.

N noork85 Mar 2012 124 1 nyc Apr 19, 2012 #6 i understand what ur saying. what about when im given something like just 3.5?

P Plato MHF Helper Aug 2006 22,492 8,653 Apr 19, 2012 #7 noork85 said: i understand what ur saying. what about when im given something like just 3.5? Click to expand... If \(\displaystyle \pi<3.5<\frac{3\pi}{2}\) in it is in III.

noork85 said: i understand what ur saying. what about when im given something like just 3.5? Click to expand... If \(\displaystyle \pi<3.5<\frac{3\pi}{2}\) in it is in III.

N noork85 Mar 2012 124 1 nyc Apr 19, 2012 #8 yes, ofcourse. y didnt i see that? thank you very very much!