00:01
Okay, so this problem just involves tricks, algebra manipulation, and then it'll be pretty easy.
00:07
So as i'm looking at 2 plus 3 natural log of 1 over x, my first trick is, well, first of leave the 2 and the 3 alone.
00:19
But i'm just going to rewrite the 1 over x as x to the negative 1st power.
00:25
This is a rule from algebra that all calculus students should know.
00:31
Yeah, i don't really want to over -explain that.
00:34
But you can try it with different numbers and use a calculator.
00:36
The next thing i would do is my law of logs, which is saying that i can move an exponent in front.
00:44
And i'm just going to change it to multiplication.
00:46
Three times negative one.
00:48
It's really what's happening.
00:49
So it becomes a minus three natural log of x...