Question

Use the unit circle to find the value of tan (-180 degrees)
(Attached diagram!)

Answer 1

tan(-x)=-tan(x)....

Answer 2

try to solve it......i will help u....:)

Answer 3

I don't know where to begin.

Answer 4

I know the equasion you typed is true.

Answer 5

ok then just substitute

Answer 6

Substitute what?

Answer 7

tan(-x)= - tan(x) = -(sin x/cos)
(0,-1) ...........(sin,cos)

Answer 8

-(0x/-1) = 0?

Answer 9

yeeeeep ........:)

Answer 10

Thanks!