PDA

View Full Version : 2=1, is this valid?



the Wookie
10-16-2003, 03:52 PM
a=b
a^2 = ab
a^2-b^2 = ab-b^2
(a+b)(a-b) = b(a-b)
(a+b)=b
(a+a)=a
2a = a
2 = 1

valid?

PJYelton
10-16-2003, 03:56 PM
No, because a-b equals zero, therefore you are dividing by zero which is a no-no. Its like saying zero times three equals zero times four, cancel the zeroes and you get three equals four.

JaWiB
10-16-2003, 03:57 PM
Where did you get 2=1? As far as I can tell, a and b both equal 0

the Wookie
10-16-2003, 03:58 PM
well if you said a=b=2

PJ: i see it now. cant divide by zero

joshdick
10-16-2003, 05:51 PM
This thread gets two thumbs down.