[Branno]

Hey guys. I have a big exam coming tomorrow for maths. I'm studying but I do not understand what this is telling me. This is about sin & cosine functions.

http://prntscr.com/wrtib

Where did 1/4 come from?
All help is appreciated.

[Lincoln Burrows]

I wish I could help you bro. What type of math is this? Meaning class

[✧Sirius Paradox✧]

First of all, it's explaining that their is two Pi Radians in one revolution, or in this case a 360° Sine/Cosine wave. As you can see, the area of the wave that is being highlighted is 8 Pi Radians, which is 4x bigger than one revolution (2 Pi Radians/360°). So it's basically saying, you need to scale it (multiply) to get to the number 8.

Break Down:
2 Radians are in a typical Cosine/Sine wave.
Their are 2 Pi Radians in one revolution. (360°)
Cosine/Sine waves are generally 360°.
-----------
Scale = Since 2 Radians is the limit, we need to get to 8 Radians. What do we do to get from 2 Radians to 8? You times two by 4.
-----------

You get that? It's 2:20am, and I'm a little tired.

[Branno]

I wish I could help you bro. What type of math is this? Meaning class

This is Mathematics B.

First of all, it's explaining that their is two Pi Radians in one revolution, or in this case a 360° Sine/Cosine wave. As you can see, the area of the wave that is being highlighted is 8 Pi Radians, which is 4x bigger than one revolution (2 Pi Radians/360°). So it's basically saying, you need to scale it (multiply) to get to the number 8.

Break Down:
2 Radians are in a typical Cosine/Sine wave.
Their are 2 Pi Radians in one revolution. (360°)
Cosine/Sine waves are generally 360°.
-----------
Scale = Since 2 Radians is the limit, we need to get to 8 Radians. What do we do to get from 2 Radians to 8? You times two by 4.
-----------

You get that? It's 2:20am, and I'm a little tired.

I didn't even look at it in that perpective of the 360° revolution.

This clears up a lot. Thanks Sirius.

[Wonders]

How did you end up going on your exam?

[Branno]

How did you end up going on your exam?

I went ok. I forgot all the rules when we walked in, I'm like, fuck.

[Wonders]

I went ok. I forgot all the rules when we walked in, I'm like, fuck.

Haha fuck. Yeah I hate exams/tests etc. which is why I left school.

[OversouL]

First of all, it's explaining that their is two Pi Radians in one revolution, or in this case a 360° Sine/Cosine wave. As you can see, the area of the wave that is being highlighted is 8 Pi Radians, which is 4x bigger than one revolution (2 Pi Radians/360°). So it's basically saying, you need to scale it (multiply) to get to the number 8.

Break Down:
2 Radians are in a typical Cosine/Sine wave.
Their are 2 Pi Radians in one revolution. (360°)
Cosine/Sine waves are generally 360°.
-----------
Scale = Since 2 Radians is the limit, we need to get to 8 Radians. What do we do to get from 2 Radians to 8? You times two by 4.
-----------

You get that? It's 2:20am, and I'm a little tired.

I see a math wiz here wooot! : o ; P

[Versace]

Please remain on topic, this thread went way off topic and only reason I'm not handing out warnings is because I'd have to warn about 5 of you.