00:01
Alright, so in this question, we're given f of x equals to 2xxx times cosine x.
00:04
So we need to determine if it's even an odd.
00:07
So if it's even, then f bracket negative x equals to f bracket x, even.
00:16
If f negative x equals to negative f of x, then it's an odd function.
00:25
Okay, so let's go ahead and plug it in, clicking negative x and see.
00:28
So f bracket negative x equals to...
00:31
2, sine, bracket, negative x, cosine, correct, negative, x...