Question

पहिल्या 10 नैसर्गिक संख्यांची बेरीज किती?
$2 {x}^{2} - kx - 3 = 0$
​

Answer 1

SOLUTION

TO DETERMINE

The sum of the first 10 natural numbers

EVALUATION

Here the first 10 natural numbers are

1 , 2 , 3 , ... , 10

It is a arithmetic progression

First term = a = 1

Common Difference = d = 2 - 1 = 1

Number of terms = n = 10

Hence the required sum

$\displaystyle \sf{ = \frac{n}{2} ( \: 1st \: term + last \: term \: )}$

$\displaystyle \sf{ = \frac{10}{2} \times ( 1 + 10)}$

$\displaystyle \sf{ = 5 \times 11}$

$\displaystyle \sf{ = 55}$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. find the 100th term of an AP whose nth term is 3n+1

https://brainly.in/question/22293445

2. 2,7,12,17,...sum of 12 terms of this A. P. is

https://brainly.in/question/24134044

Answer 2

Answer:

10 नैसर्गिक संख्याची बेरीज किती