Advertisements
Advertisements
प्रश्न
Find the square of the following numbers using the identity (a + b)2 = a2 + 2ab + b2:
209
Advertisements
उत्तर
On decomposing:
209 = 200 + 9
Here, a = 200 and b = 9
Using the identity (a + b)2 = a2 + 2ab + b2:
2092 = (200 + 9)2 = 2002 + 2(200)(9) + 92 = 40000 + 3600 + 81 = 43681
APPEARS IN
संबंधित प्रश्न
Find the square root of the following number by division method.
7921
Find the least number which must be added to the following number so as to get a perfect square. Also find the square root of the perfect square so obtained.
525
Find the least number which must be added to the following number so as to get a perfect square. Also find the square root of the perfect square so obtained.
252
Find the square of the following number using the identity (a − b)2 = a2 − 2ab + b2:
395
Find the square of the following number by visual method:
99
Find the square root the following by long division method:
9653449
Find the square root the following by long division method:
20657025
Find the square root the following by long division method:
6407522209
Find the square root of: `sqrt(108 xx 2028)`
Find the square root of the following by long division method.
1.44
