Question

1 se 100 tak sabhi natural no. ka sum gayt kigiye

Answer 1

here,
a=1
last term=100
no. of terms=100
$\frac{n}{2} (a + last \: term \: of \: ap) \\ = \frac{100}{2} (1 + 100) \\ = 50 \times 101 \\ = 5050$
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