Hello.

evaluate:

.

Without using Trig/Hyperbolic Substitutions.

And you must use the substitution method only.

I believed, its impossible to solve it.

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- February 22nd 2010, 05:14 AMTedIntegral.
Hello.

evaluate:

.

Without using Trig/Hyperbolic Substitutions.

And you must use the substitution method only.

I believed, its impossible to solve it. - February 22nd 2010, 07:28 AMlil_cookie
The way I was taught to answer integrals:

Answer:

- February 22nd 2010, 07:35 AMHallsofIvy
Unfortunately, you cannot just put that "x" into the integrand!

Quote:

Answer:

, not just

I doubt that you were taught that way!

Ted, I don't believe there**is**any way to do that other than either the trig or hyperbolic substitutions.

Of course, you could always look it up in a table of integrals. Does that count?

http://www.integral-table.com/ - February 22nd 2010, 09:06 AMKrizalid