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.
900
Find the least number that 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.
402
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.
1825
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.
6412
Find the square of the following number using the identity (a − b)2 = a2 − 2ab + b2:
999
Find the square root the following by prime factorization.
1156
Find the square root the following by long division method:
363609
Find the square root the following by long division method:
62504836
Find the least number which must be added to 5483 so that the resulting number is a perfect square.
Which of the following numbers will have 6 at their unit’s place :
(i) 262
(ii) 492
(iii) 342
(iv) 432
(v) 2442
