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Mathematics

ScanSolve AI Answer

Step-by-step solution

5 steps
  1. Recall the formula for the sum of the first nn natural numbers.

    Sn=n(n+1)2S_n = \frac{n(n+1)}{2}
  2. Substitute n=50n = 50 into the formula.

    S50=50(50+1)2S_{50} = \frac{50(50+1)}{2}
  3. Simplify inside the parentheses.

    S50=50×512S_{50} = \frac{50 \times 51}{2}
  4. Multiply the numbers in the numerator.

    S50=25502S_{50} = \frac{2550}{2}
  5. Divide by 2.

    S50=1275S_{50} = 1275

    1275\boxed{1275}

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