Question

Question 1
What can be the unit place digit in the square root of the following numbers.
(i) 9604
(ii) 65536
(iii) 998001
(iv) 60481729

Answer 1

Given : (i) 9604

(ii) 65536

(iii) 998001

(iv) 60481729

To Find : What can be the unit place digit in the square root

Solution:

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

6² = 36

7² = 49

8² = 64

9² = 81

10² = 100

9604    - Unit  Digit can be 2 or  8

√9604     = 98

65536   Unit  Digit can be 4 or  6

√65536  = 256

998001 - Unit  Digit can be 1 or  9

√998001 =999

60481729  Unit  Digit can be 3 or  7

√60481729 = 7777  

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Answer 2

Step-by-step explanation:

please explain why in 65536 is 4 or 6