Now it's differentiation turn.

Calculus Level 3

Kevin tries to prove, 2 = 1 2 =1 . In which of the 3 steps below Kevin first makes the mistake using flawed logic ?

step 1: Consider the following. x 2 = x + x + x + ⋯ + x ⏟ x times \large x^2 = \underbrace{x+x+x+\cdots + x}_{\text{x times }} step 2 : Differentiating both sides. 2 x = 1 + 1 + 1 + ⋯ + 1 ⏟ x times \large 2x = \underbrace{1+1+1+\cdots +1}_{\text{x times}} step 3: Simplifing the equation. 2 = 1 \large 2 = 1

step 1 step 2 All the steps are correct step 3

Naren Bhandari by Naren Bhandari , 21, India

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