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Studentka2010 [4]
1 year ago
14

Find the value of 11 +22+33 + ... + 1100.

Mathematics
1 answer:
ella [17]1 year ago
5 0

Answer:

sum of terms: 55550

Explanation:

\sf S_n = \dfrac{n}{2} (u_{start}+u_{end}})

Here the number of terms:

1100 ÷ 11 = 100

Using the Formula:

\sf \dfrac{100}{2} (11+1100)

\sf 55550

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