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प्रश्न
Find the number of digits in the square root of the following numbers (without any calculation).
390625
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उत्तर
Since the number of digits in 390625 is 6 (= n), which is even.
Then its square root will have `n/2` digits.
Number of digits = `6/2`
= 3
संबंधित प्रश्न
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.
1750
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405
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209
Find the square of the following number using the identity (a − b)2 = a2 − 2ab + b2:
495
Find the square of the following number by visual method:
99
Find the square root the following by long division method:
120409
Find the square root the following by long division method:
20421361
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 not have 1 (one) at their unit’s place :
(i) 322
(ii) 572
(iii) 692
(iv) 3212
(v) 2652
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6889
