Q66

Question:

Sum of first n odd numbers = ?

पहले n विषम संख्याओं का योग = ?

Options:

  • a) n²
  • b) n(n+1)/2
  • c) n(n+1)
  • d) 2n
  • a) n²
  • b) n(n+1)/2
  • c) n(n+1)
  • d) 2n

correct answer : a)

Explanation:

1+3+5+…+(2n-1)=n². Classic formula.

1+3+5+…=n²।

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