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Friday Riddle Answer

nudgie's picture
nudgie
Posts: 1483
Joined: Sep 2006

RIDDLE: n + n + .... n times = n^2.

differentiating both sides with n we get

1 + 1 +.... n times = 2*n

or

n = 2*n

find the flaw?

ANSWER: ans. n + n + .....n times we can only add if "n" is an integer. So basically this function is discontinous and we can't differentiate a discontinous function.

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