00:01
Using a graph and calculator is very easy to double check that you have the correct answer.
00:05
You just have to find the tools that will get you there.
00:07
So like my tool is under this function, it's the integral, and i'll just do 43 here where it's asking for the integral from 0 to 1.
00:18
And some calculations need parentheses in here of the 2x, e to the x squared power, d x.
00:31
You'll check and type that in 2x e to the x squared dx and you can get the correct answer 1 .718 you know you can do that again from the next problem and one take much for you to check that you have the right answers because this one is zero to one again this is 44 of 3x squared e to the x cubed the x yeah so again it doesn't take much to check that you have the right answer, it's just a matter of going to your calculator.
01:15
So if i look at the next problem, we have, well, i like to put in parentheses just in case i need them.
01:23
And then x squared plus one.
01:30
And that's to the fifth power.
01:32
Close that point.
01:33
D, x.
01:34
And you can see that answer is about 5 .25.
01:37
So it doesn't take much...