Hello all,(adsbygoogle = window.adsbygoogle || []).push({});

I wanted to know whether the following two relations are same.

[tex]

\int x\;f(x)\;{\rm d}x = {\rm A}

[/tex]

and

[tex]

\int (x-{\rm A})\;f(x)\;{\rm d}x = 0

[/tex]

are same?

'A' is some positive number, distribution function f(x) is normalized to 1. (i am trying to understand some details of first moment of f(x) and got this doubt.)

thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Integral calculus help

**Physics Forums | Science Articles, Homework Help, Discussion**