Evaluate:

5
∫ 3^{y} dy
0

where [p] is the greatest integer ≤ p, and {p} = p - [p]

First i replace {y} with y-[y]

Then i divide the integral in 5 integral from 0 to 1, 1 to 2 ......4 to 5 so that [y] cn be evaluate.

There are no problem to calculate all this integral, and atention all have the same result!!

The final result is 10/ln3

Please tell me how i can use the sign of definite integral on the solution!

Edited on October 12, 2007, 10:32 am

Posted by Chesca Ciprian on 2007-10-12 10:31:55