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MHT CET2010MathematicsLimits

The value of _ x 1+2+3 +n n² is

Options

  1. A1
  2. B1 2
  3. C0
  4. D3 2

Correct answer

B. 1 2

Step-by-step solution

_ n 1+2+3+ +n n² = _ n n(n+1) 2 n² = _ n (1+ 1 n ) 2 = 1 2

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