Question

@nbouscal continue please. Unit circle. Trig.

Answer 1

Hi lgba, you're viewing the question

Answer 2

Continue on which part? Haha

Answer 3

Teach me more trig please. Also draw diagrams.

Answer 4

The unit circle... x and y!!! (Sorry I was lost there :| )

Answer 5

If 45deg = (pi rad)/4, then sin45 = sin(pi rad/4)?

Answer 6

Unit circle is one whose radius is one

Answer 7

Hmm yes I know that @shahzadjalbani

Answer 8

oK then what do you want to know.

Answer 9

Okay so we define \(\cos\theta\) as the \(x\)-coordinate of the unit circle at \(\theta\), and \(\sin\theta\) as the \(y\)-coordinate of the unit circle at \(\theta\). We start \(\theta\) at (1,0)

Answer 10

But why not at the origin?

Answer 11

How do you rotate from the origin? You'll just stay at the origin :P

Answer 12

Let me draw, to help explain.

Answer 13

Hmm, I'm not understanding a thing :P simple