Friday, October 14, 2011

Reference Angles

Wazzam you already know who it is, its ricky g in this blog putting in work ya feel me. Getting these blogs done for ya Mrs. Robinson fasho lets get it done

Let me show you what it do with reference angle real quick.
Steps: 1.) Sketch in original quadrant
2.) Positive or Negative with Unit circle
3.) Subtract 180 or 360 till between 0 and 90

Ex: Find reference angle of sin640

1) Its gonna be in quadrant 4
2) sin is negative
3) 640-360=280-360=-80

-sin80 is final answer

Yeah Mr. Beastly signing of but you already know ima be reporting live from the NYC

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