Question

please help ^.^

Answer 1

@geekfromthefutur

Answer 2

That's devil math xD

Answer 3

thanks anyway XD

Answer 4

can u use unit circle ?

Answer 5

all that I know have to do is draw the angle given, and then find cosine and sine, I don't think it matters how I get it done I just have to show my work

Answer 6

i like degrees so if you want you can convert radians to degree 7pi/4 times 180/pi

Answer 7

ok so 315 degrees?

Answer 8

yes right which is in 4th quadrant

Answer 9

alright

Answer 10

draw a right traingle near to the axis
we need that reference angle
which is 45
360-315 = 45
now you have to use 45-45-90 triangle

Answer 11

ok I think I understand...

Answer 12

http://prntscr.com/7crrp5 right here
sin = opposite over hypotenuse
cos = adjacent over hypotenuse