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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

bobbym
2012-10-28 07:53:32

Hi;

Actually,my brother challenged me to solve it,and I couldn't solve it,so I came here for help.

I think you should re-challenge your brother and humbly ask him for the solution.

anonimnystefy
2012-10-28 01:01:51

It is probable nobody has a solution (other than W|A's series).

zetafunc.
2012-10-28 00:15:25

It looks like something that he made up on the spot and he probably does not have a solution at hand.

Johnathon bresly
2012-10-28 00:13:40

Actually,my brother challenged me to solve it,and I couldn't solve it,so I came here for help.

bobbym
2012-10-27 23:54:42

Correct, that is one use of a CAS!

zetafunc.
2012-10-27 23:53:38

I hope I am wrong, it has always been my quick go-to way of checking my answers.

bobbym
2012-10-27 23:50:27

You might be right. Corporate boobs think only in terms of money. They only know two ways to make it. Charge for what is currently free and raise the price on what isn't.

zetafunc.
2012-10-27 23:47:03

Soon W|A will not be free at all.

bobbym
2012-10-27 23:45:11

I have emailed them several times to not put any restrictions on the site such as that. Seems like every time I did they took something away.

zetafunc.
2012-10-27 23:42:42

I see.

They also appear to have blocked you from using the 'more time' command, unless you are a subscriber.

bobbym
2012-10-27 23:40:10

Hi;

That is done with the Series command. Mathematica can differentiate anything so Mclaurin series are easy for it.

zetafunc.
2012-10-27 23:31:28

I wonder how W|A got their series. This certainly does not look very nice. Unless there is some sort of extraordinarily clever substitution that can be made here.

bobbym
2012-10-27 22:00:10

Hi;

Most do not. I am unable to find one for that.

anonimnystefy
2012-10-27 21:53:46

Hi

That function doesn't have an antiderivative among the standard mathematical functions.

Where does that integral come from anyway?

Johnathon bresly
2012-10-27 21:46:22

How do I solve this-

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