I've got a problem with the following limit..

can someone solve this.. the solution is 0 but i dunno how.. i get 9/2

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- Jan 22nd 2009, 08:34 AMmetlxLimit of a function
I've got a problem with the following limit..

can someone solve this.. the solution is 0 but i dunno how.. i get 9/2 - Jan 22nd 2009, 08:47 AMPlato
- Jan 22nd 2009, 08:52 AMSoroban
Hello, metlx!

I don't agree with their answer either,

. . but I bet I know where the error is . . .

Quote:

As it is written, we can simply substitute

. . and we get: .

I'm certain the limit is: .

. . . . . an indeterminate form.

We have: .

. . Since , we can reduce: .

Therefore: .

- Jan 22nd 2009, 09:17 AMmetlx
thanks!

I've got another problem with roots..

the answer is 4/3.. but how? - Jan 22nd 2009, 10:48 AMmetlx
never mind. i managed to solve it =)