1. ## -cos(infinite)

does this exist.. i was doing a limit

is -cos(infinite) = dne(does not exissit)?

2. Originally Posted by Legendsn3verdie
does this exist.. i was doing a limit

is -cos(infinite) = dne(does not exissit)?
That's correct. $-\cos{(\infty)}$ doesn't make sense because the function is oscillating.