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Principle of Mathematical Induction — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsPrinciple of Mathematical Induction1 Mark
MCQ
What is the sum of $13 + 23 + 33 + ........ + n^3$?
  • A
    $\Big(\frac{\text{n}(\text{n-1)}}{3}\Big)^2$
  • ✓
    $\Big(\frac{\text{n}(\text{n+1)}}{2}\Big)^2$
  • C
    $\Big(\frac{\text{n}(\text{n+1)}}{3}\Big)^2$
  • D
    $\Big(\frac{\text{n}(\text{n-1)}}{2}\Big)^2$
✓

Answer

Correct option: B.
$\Big(\frac{\text{n}(\text{n+1)}}{2}\Big)^2$

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