Question

What is the y-value of cos(x) when x = -360°?
Help?

Answer 1

cos is x values remember...so at 306...180...0...-360 ...-180 the cos will = 1

Answer 2

What is the y value when x=0?

Answer 3

\[\cos(0^{\circ}) = 1\]HINT: It repeats every 360 degrees.

Answer 4

woops 360 the first number sorry

Answer 5

1/2?

Answer 6

@johnweldon1993 cos(180) = 1 ???

Answer 7

Noticed that @DarthTony lol...-1 sorry

Answer 8

So at 0 degree cos = 1...at 360 cos = 1..at -360 cos will equal what?

remember when its -...it just means it's travelling in the opposite direction....but it will come out the same in this example

Answer 9

It would come out as 1? ): Im so confused.

Answer 10

Yes it would come out to 1