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Unread 03-03-2015, 12:01
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Math Quiz 6


Find the antiderivative of sqrt(x2+4).

Show all steps, using only methods typically presented in a second-semester college freshman calculus class.

I'm looking for the steps, not just the final answer.


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Unread 03-03-2015, 12:38
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Re: Math Quiz 6

I think step 1 is to do a trigonometric substitution for x, but the details of how to do so are covered in mental cobwebs...
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Unread 03-03-2015, 12:43
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Re: Math Quiz 6

Credit goes to our driver, not me.

http://i.imgur.com/mYru6ww.jpg
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Unread 03-03-2015, 12:57
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Re: Math Quiz 6

I guess I type too slowly...I got the same answer although I simplified it further with arsinh. My working (I did it in LaTeX) is here: http://goo.gl/k778i9
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Unread 03-03-2015, 13:03
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Re: Math Quiz 6

Quote:
Originally Posted by Bryce Paputa View Post
Credit goes to our driver, not me.

http://i.imgur.com/mYru6ww.jpg
Does your driver have a CD account? I'll give him some reps :-)


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Unread 03-03-2015, 13:04
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Re: Math Quiz 6

Quote:
Originally Posted by Rachel Lim View Post
I guess I type too slowly...I got the same answer although I simplified it further with arsinh. My working (I did it in LaTeX) is here: http://goo.gl/k778i9
This is both correct and the proper form. I appreciate the final set of substitutions.
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Unread 03-03-2015, 13:04
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Re: Math Quiz 6

Quote:
Originally Posted by Rachel Lim View Post
I guess I type too slowly...I got the same answer although I simplified it further with arsinh. My working (I did it in LaTeX) is here: http://goo.gl/k778i9
Wow. Nice work. Reps to you!


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