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#1 2012-12-01 19:49:51

Registered: 2012-07-23
Posts: 101

Is this inequation correct?

Is this step of this inequation is correct,I got it from a book and I guess its wrong or may be I am missing something

How come the sign changed? To me it doesnt make any sence.


Debjit Roy
The essence of mathematics lies in its freedom - Georg Cantor


#2 2012-12-01 20:14:11

From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Is this inequation correct?

Hi debjit625;

Looks like a typo.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.


#3 2012-12-01 20:14:17

Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,037

Re: Is this inequation correct?

It's wrong. The sign should've stayed the same...

“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.


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