Advertisements
Advertisements
प्रश्न
The sum of first n odd natural numbers is ______.
पर्याय
2n + 1
n2
n2 – 1
n2 + 1
उत्तर
The sum of first n odd natural numbers is n2.
Explanation:
Sum of first n odd natural numbers
= `sum(2n - 1) = 2sumn - n`
= `(2 xx n(n + 1))/2 - n`
= n(n + 1) – n
= n2 + n – n
= n2
APPEARS IN
संबंधित प्रश्न
What will be the units digit of the square of the following number?
52698
What will be the units digit of the square of the following number?
53924
Observe the following pattern
22 − 12 = 2 + 1
32 − 22 = 3 + 2
42 − 32 = 4 + 3
52 − 42 = 5 + 4
and find the value of
1112 − 1092
Find the squares of the following numbers using diagonal method:
98
Find the square of the following number:
425
Find the square of the following number:
575
Find the square of the following number:
95
Find a Pythagorean triplet in which one member is 12.
There are ______ natural numbers between n2 and (n + 1)2
Find the area of a square field if its perimeter is 96 m.
