What is the sum of first 10 natural numbers?
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Answered by
0
Answer:
Input parameters & values: The number series 1, 2, 3, 4, . . . . , 9, 10. Therefore, 55 is the sum of positive integers upto 10.
Answered by
1
Answer:
The answer will be 55.
Step-by-step explanation:
In first 10 natural numbers;
a or first term = 1
al or last term = 10
d = 2-1 = 1
No of terms equal;
al = a + d(n-1)
10 = 1 + (1)(n-1)
9 = n-1
n = 10
Hence, sum of 10 natural numbers equal;
S = n/2 × (a + al)
= 10/2 × (1 + 10)
= 5 × 11
= 55.
That's all.
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