Advertisements
Advertisements
प्रश्न
Find the squares of the following numbers using the identity (a + b)2 = a2 + 2ab + b2:
405
उत्तर
On decomposing:
405 = 400 + 5
Here, a = 400 and b = 5
Using the identity (a + b)2 = a2 + 2ab + b2:
4052 = (400 + 5)2 = 4002 + 2(400)(5) + 52 = 160000 + 4000 + 25 = 164025
APPEARS IN
संबंधित प्रश्न
Find the square root of the following number by division method.
3249
Find the square root of the following number by division method.
900
Find the squares of the following number using the identity (a + b)2 = a2 + 2ab + b2
1001
Find the squares of the following numbers by visual method:
52
Write the possible unit's digits of the square root of the following numbers\. Which of these number is odd square root?
9801
Find the square root the following by long division method:
974169
Find the square root the following by long division method:
1745041
Find the square root the following by long division method:
20421361
Find the square root the following by long division method:
82264900
Find the square root by long division method
17956
