Question

What is the y-value for f(x) = cos(x) when x = 180°?

Answer 1

horizontal

Answer 2

you did this in an earlier question

you asked - what values of cos (x) have a value of -1

Answer 3

vertical??

Answer 4

-1

0

1/2


1

Answer 5

yeah?? its one

Answer 6

WHAT?

What radius are you talking about @Loser66 ?

@HWBUSTER00 just refer to your OWN earlier question - the answer is in that question

Answer 7

just plot the graph

Answer 8

my answer was -180 to 180

Answer 9

???? is it -1

Answer 10

make a cosine graph.

Answer 11

http://www.calculatorsoup.com/images/trig_plots/graph_cos_pi.gif

Answer 12

180 is pi in radian so what does it look like when you find where the graph intersects with pi.

Answer 13

-1

Answer 14

is it -1???