math notes

if csc0=-3 find sin 0

-1/3 (do opposite)

clockwise

-360

If each angie is in standard position, determine a coierminel angie that is between~O° and 360°, and state the quadrant in which the terminal side lies. -995°

-995+360(3)=85 quadrant 1

1.5 rotations clockwise

1.5*-360=-540

2.6 rotations counterclockwise

2.6*360=936

Find the meesure of the reterence angle for each angl,e. . 227° . 640°

227-180=47 640-360=280 360-280=80

32 28 10

32+28/60+10/3600=32.469

counterclockwise

360

Identify all angles that are coterminet with each angle. Then find one positive angle and one ~ angle that are coterminel with each angle. 43 degrees

43+360=403 43-360=-317

If each angie is in standard position, determine a coierminel angie that is between~O° and 360°, and state the quadrant in which the terminal side lies. 472°

472-360=112 quadrant 2 (subtract because positive)

change 65.782 to degrees, minutes and seconds

65 .782*60=46.92 .92*60=55.2 65 46 55.2

cotangent

adjacent/opposite

cos

cah

sec

h/a

cosec

h/o

reference angle chart

quadrant 1- 0 quadrant 2- 180-0 quadrant 3 - 0-180 quadrant 4 - 360-0

sin

soh

tan

toa