Advertisements
Advertisements
प्रश्न
Find the squares of the following number using the identity (a + b)2 = a2 + 2ab + b2
1001
Advertisements
उत्तर
On decomposing:
1001 = 1000 + 1
Here, a = 1000 and b = 1
Using the identity (a + b)2 = a2 + 2ab + b2:
10012 = (1000 + 1)2 = 10002 + 2(1000)(1) + 12 = 1000000 + 2000 + 1 = 1002001
APPEARS IN
संबंधित प्रश्न
Find the number of digits in the square root of the following numbers (without any calculation).
4489
Find the least number which must be subtracted from the following number so as to get a perfect square. Also find the square root of the perfect square so obtained.
1989
Find the squares of the following numbers using the identity (a − b)2 = a2 − 2ab + b2:
498
Find the square of the following number by visual method:
95
Find the square root the following by long division method:
1745041
Find the least number which must be subtracted from the following numbers to make them a perfect square:
4401624
Find the square root of: `(1764)/(2809)`
Find the square root of: `sqrt(108 xx 2028)`
Find the square root of: `0.01 + sqrt(0.0064)`
Find the greatest number of three digits that is a perfect square.
