Question

What is the sum of first n natural numbers?
(b) in 2)
(0)
nant)
2
(d) ( 1 + 2)
2
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Answer 1

Answer:

the sum of first natural number and 2 is always 3.

Step-by-step explanation:

Answer 2

Answer:

+ n = n(n+1) / 2, for n a natural number. There is a simple applet showing the essence of the inductive proof of this result.

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