Question

Find the sine, cosine, and tangent of 360 degrees. @zzr0ck3r @SithsAndGiggles

Answer 1

@Nnesha

Answer 2

you can use *unit circle * where cos is x-coordinate and sin - is y-coordinate
and tan = sin over cos

Answer 3

without calculator you need to apply 45-45-90 triangle theorem
or 30-60-90

Answer 4

ok im lost

Answer 5

check your Unit Circle as Nnesha suggested

Answer 6

ok. what do i look for

Answer 7

thats why just use unit circle instead 45-45-90 theorem

Answer 8

360 degree

Answer 9

look 't jdoe's drawing

Answer 10

ok

Answer 11

do you have unit circle sheet ? if not then google it

Answer 12

got one

Answer 13

i look for 360 on the unit circle?

Answer 14

there is none because 360 IS 0 and vice versa right?

Answer 15

0 doesn't mean *nothing* :=)

Answer 16

there is an order pair right (x,y) where x=cos
y =sin

Answer 17

yes. (1,0)

Answer 18

yes so sin 360 = ?
and cos 360 = ?

Answer 19

sin 360 = 0
cos 360 = 1

Answer 20

and tan 360 = 0

Answer 21

ok thx. what about this one.
The point (1, −1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of θ? Make sure to show all work.

Answer 22

i find where the point 1 and -1 are at

Answer 23

you have to draw a right triangle

Answer 24

ok

Answer 25

from quadrant 1?

Answer 26

wait a sec i have to refresh the page
*lag is real*

Answer 27

given point is (1,-1)
so cos =1 (positive )
sin = -1 ( negative ) so at which quadrant cos is positive but sin is negative remember the CAST rule ?

Answer 28

yes

Answer 29

4th quadrent

Answer 30

yep right

Answer 31

now you need to find hyp
apply Pythagorean theorem and find 3rd side of right triangle