# proof

• May 11th 2010, 06:53 AM
WeeG
proof
Hi,

I need to prove the next formula (attached file)
any hints ?
• May 11th 2010, 07:11 AM
Jester
Quote:

Originally Posted by WeeG
Hi,

I need to prove the next formula (attached file)
any hints ?

I don't think it's always true for all $x$. Try $x = 4$.
• May 11th 2010, 10:15 AM
undefined
Quote:

Originally Posted by WeeG
Hi,

I need to prove the next formula (attached file)
any hints ?

Well the statement is not true because the middle expression exceeds 3/2 whenever |x| > 3, but in general for this type of problem you can use limits.