MacLaddy1
- 52
- 0
Hello again,
I have a question about a trigonometric substitution problem that I am struggling with. I was able to get the correct answer, which I know is correct because of Wolfram verification, and my school has a way of showing an example which showed the steps... Anyway, see below.
[math]\int_0^\frac{1}{5}\frac{dx}{\sqrt{25x^2+1}^\frac{3}{2}}[/math]
Without going through all the steps, I can tell you that the solution to this integral is,
[math][\frac{1}{5}sin\theta]_0^\frac{1}{5}[/math]
which SHOULD simplify to
[math][\frac{1}{5}*\frac{x}{\sqrt{25x^2+1}}]_0^\frac{1}{5}[/math]
However, the book shows that [math]\frac{1}{5}[/math] is omitted, and this ends up being the final correct answer by taking 1/5 out.
Can anyone explain to me what is happening here?
Thanks,
Mac
I have a question about a trigonometric substitution problem that I am struggling with. I was able to get the correct answer, which I know is correct because of Wolfram verification, and my school has a way of showing an example which showed the steps... Anyway, see below.
[math]\int_0^\frac{1}{5}\frac{dx}{\sqrt{25x^2+1}^\frac{3}{2}}[/math]
Without going through all the steps, I can tell you that the solution to this integral is,
[math][\frac{1}{5}sin\theta]_0^\frac{1}{5}[/math]
which SHOULD simplify to
[math][\frac{1}{5}*\frac{x}{\sqrt{25x^2+1}}]_0^\frac{1}{5}[/math]
However, the book shows that [math]\frac{1}{5}[/math] is omitted, and this ends up being the final correct answer by taking 1/5 out.
Can anyone explain to me what is happening here?
Thanks,
Mac