Can you explain this?
If y = x+x+x+x+-----+x((x times)) ----------------------eqn 1
it can be written as x(1+1+---1 ,x times)= x^2----eqn 2
if we differentiate eqn 1 we get 1+1+---1, x times which equals to x.
But if we diffntiate eqn2 we get x^2.
by 
HDev is living On tHE EdgE
ANSWERS: 1
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1. How are you going to differentiate "x times" ??? How do you add 1+1+1+..., (x+deltax) times? 2. If you differentiate eqn2, y=x^2, you get y'=2x.
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