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Can anyone please help me answer this question?

Show that the following statement is true for all natural numbers n
a. 1 + 2 + 3 + ⋯ + = n (n + 1)/ 2
b. 1 + 4 + 7 + ⋯ . +(3 − 2) = n (3n - 1)/ 2

2 Answers

3 votes

Explanation:

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User Mher
by
7.4k points
1 vote

Answer is in the attached png file

Can anyone please help me answer this question? Show that the following statement-example-1
User Martin Evans
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6.8k points