Advertisements
Advertisements
प्रश्न
Find the squares of the following number using the identity (a + b)2 = a2 + 2ab + b2:
510
Advertisements
उत्तर
On decomposing:
510 = 500 + 10
Here, a = 500 and b = 10
Using the identity (a + b)2 = a2 + 2ab + b2:
5102 = (500 + 10)2 = 5002 + 2(500)(10) + 102 = 250000 + 10000 + 100 = 260100
APPEARS IN
संबंधित प्रश्न
Find the square root of the following number by division method.
4489
Find the square root of the following number by division method.
529
Find the square root of the following number by division method.
1024
Find the number of digits in the square root of the following numbers (without any calculation).
4489
Find the square of the following number using the identity (a − b)2 = a2 − 2ab + b2:
995
Find the square of the following number using the identity (a − b)2 = a2 − 2ab + b2:
99
Write the possible unit's digits of the square root of the following number. Which of these number is odd square root?
99856
Find the square root the following by long division method:
120409
Find the square root the following by long division method:
291600
Find the least number of four digits that is a perfect square.
