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

Step-by-step explanation:

The sum of 5 natural numbers are

• Natural numbers (1,2,3,4,5)= 15
• Natural numbers are the numbers which starts from 1.
• Sum of natural numbers from 11 to 30= 41.

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