Question

the sum of first natural number is given by 1/2 n power 2 + 1/2 n find​

1) The sum of first 5 natural number

2) The sum of natural numbers from 11 to 30 .
​

Answer 1

Input parameters & values: The number series 1, 2, 3, 4, 5. Therefore, 15 is the sum of positive integers upto 5.

410

Answer 2

Answer:

Your first question answer

A, 2

B,3

C,1

E, 5

F,6

D, 4

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Step-by-step explanation:

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