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Monday, February 21, 2005

Here's a puzzle that has been vexing me for quite sometime
d/dx(x^2)= 2*x --Pretty straightforward,ain't it?
Now,if you substitute x^2 with the sum (x+x+x......x times),you get:
d/dx(x+x+x.......x times)=x
which is obviously incorrect.
Where have I gone wrong?
Please do point out the error.

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