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ygarcia
 2 years ago
Find COS 23pi/6?
ygarcia
 2 years ago
Find COS 23pi/6?

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nelsonjedi
 2 years ago
Best ResponseYou've already chosen the best response.0Do you have a calculator?

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0so I replace pi with 180?

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0so it'd be 23*pi divided by 6?

RolyPoly
 2 years ago
Best ResponseYou've already chosen the best response.0cosine of a value cannot be larger than 1...

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0can you please explain?

RolyPoly
 2 years ago
Best ResponseYou've already chosen the best response.0See the graph of cosine:dw:1389756073553:dw

RolyPoly
 2 years ago
Best ResponseYou've already chosen the best response.0Maximum of a y=cos x function is 1. Minimum of a y=cosx function is 1

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0so do I need to graph this?

nelsonjedi
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1389756066410:dw

RolyPoly
 2 years ago
Best ResponseYou've already chosen the best response.0So, you cannot have COS 23pi/6 = 12.03

RolyPoly
 2 years ago
Best ResponseYou've already chosen the best response.0\[\cos\frac{23\pi}{6} = \cos(3(2\pi) + \frac{5\pi}{6}) = \cos\frac{5\pi}{6} = ...?\]

nelsonjedi
 2 years ago
Best ResponseYou've already chosen the best response.0Using the attached drawing where does 23/pi fall?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Okay sir's let me tell you that. Cos23pi/6 2pi will give you the same answer

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1The reason you don't know where it falls is becomes you have to do more than one revolution around the circle

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0so i subtract 2pi fom 6?

nelsonjedi
 2 years ago
Best ResponseYou've already chosen the best response.02pi = 12pi/6..So 23pi/612pi/6 = 11pi/6

nelsonjedi
 2 years ago
Best ResponseYou've already chosen the best response.0Are you familiar with the unit circle in trigonometry?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Now if radians are bothering you we can convert it to degrees.

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0do i need like a specific calculator for this?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1You could plug this into your calculator, but if this comes up on a test and you can't use one, you will be screwed.

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0Can you explain how to do it manually?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1That gives us 330 degrees

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Do you know where that is on the unit circle?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1hint: It's in quadrant IV

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Okay. tell me the coordinates for it.

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1That would be 315 degrees.

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Okay. You should know that Cosx= x

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1So what is the value for Cos330?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Keep this exact. You just gave me the coordinates. and I just told you CosƟ=x

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1so what is the exact answer?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Use the coordinates you gave me.

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Yes and I told you cosƟ=x so what is cos330?

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0I don't get it /.\ I'm sorry

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0when I plug in Cos330 it gives me the decimal I gave you

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Okay also cosƟ=A/H This is the unit circle and the hypotenuse will always be one so basically cosƟ=H what is Cos330?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1ygarcia what calculator are you using btw?

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0I don't have a calculator

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Okay. Well just finish it. Cos330=A. What is A in that triangle? A for adjacent to theta.

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1No. Adjacent means next to. So what is next to theta that isn't the hypotenuse. 1/2 is opposite.

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0so the solution is sqrt 3/2?

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Now let's see if you learned anything. Tell me the sin330 if you know that sinƟ=y

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Very good. Just use the coordinates you gave me for that degree value. (sqrt(3)/2, 1/2) (x,y) SinƟ=y and the y value for 330 is 1/2 so that's the answer.

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0So Cos= x value and Sin= y value?

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0In reference to the circle

Lethal
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah. Because in the unit circle the radius is one, that's why it's called a unit circle, one unit. Anytime you have something over 1 It's just whatever the numerator is.

ygarcia
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, Thanks SO MUCH!!!! I don't fully get it yet but what you explained to me helped A LOT :)
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