find the mistake?

let x be any real number,
then, x2= x+x+x.....upto x terms
differentiating both sides wrt x
2x= 1+1+1.......upto x terms
or,2x=x
or,2=1.
find where is the mistake?
forgive me if you think it is a stupid question.it was asked by one of my friends.

2 Answers

1
skygirl ·

arey this is the third time someone is asking this question!

u just chcek in the forum...

this one in one of the question of the days....

21
amit sahoo ·

ohhh,got it now, just a discrete function.

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