17. The sum of first 'n' natural numbers is given by the formula
a. Ση =n(n- 1)/
2
b. Ση = n(n+1)/
2
C. Ση =(n-1)/2
d. Σn = (n+1)/
2
Answers
Answered by
0
Step-by-step explanation:
d is the correct answer because sum of first n natural numbers is n(n+1)÷2
Answered by
0
Answer:
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