Question

3.Find the sum of first ten natural numbers with the help of formula (n²+n/2)​

Answer 1

Answer:

55

Step-by-step explanation:

The sum of first 10 natural numbers 1+2+3+...+10

$\frac{n \times (n + 1)}{2} = \frac{10 \times 11}{2} = 5 \times 11 = 55$