00:01
Okay, so for this problem, what we'll do? we'll take the antiderative of the whole function.
00:04
So we'll do an antiderative of e to the theta.
00:08
Let's respect to theta is e to the theta, right? and then what we'll have here is that this also, think of just also as just the x, it's pretty much exactly the same thing.
00:17
And then we'll have negative cosine of theta.
00:20
And we're going to evaluate this from negative 1 to 1.
00:22
So we're going to have e to the power of 1, which is just e, minus cosine of 1, which is just 1.
00:29
And we're going to have minus e to the power of negative one.
00:34
So it's going to be 1 over e.
00:37
And then we're going to have minus cosine of negative 1, right? if we do cosine of negative 1, we'll just actually just leave it.
00:49
Actually, cosine of 1 is not.....