Question

The sum of first n natural number is
a) 0.5n (n+1)
b) n²/2
c) (n+2)
d) 0.5+ (n+1)
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Answer 1

Answer:

a) 0.5n (n+1) is the correct option

Step-by-step explanation:

The sum of first n natural number is  $\frac{(n)(n+1)}{2}$ =  0.5n (n+1)

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