Advertisements
Advertisements
प्रश्न
Find the square of the following number using the identity (a − b)2 = a2 − 2ab + b2:
995
Advertisements
उत्तर
Decomposing: 995 = 1000 − 5
Here, a = 1000 and b = 5
Using the identity (a − b)2 = a2 − 2ab + b2:
9952 = (1000 − 5)2 = 10002 − 2(1000)(5) + 52 = 1000000 − 10000 + 25 = 990025
संबंधित प्रश्न
Find the square root of the following number by division method.
3481
Find the square root of the following number by division method.
1369
Find the number of digits in the square root of the following numbers (without any calculation).
64
Find the number of digits in the square root of the following numbers (without any calculation).
27225
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.
3250
Find the square of the following number by visual method:
702
Write the possible unit's digits of the square root of the following numbers\. Which of these number is odd square root?
9801
Write the prime factorization of the following number and hence find their square root.
7056
Find the square root the following by long division method:
62504836
Which of the following numbers will not have 1 (one) at their unit’s place :
(i) 322
(ii) 572
(iii) 692
(iv) 3212
(v) 2652
