Question

5. A number having digits 2, 3, 7 or 8 at units place can never be a perfect square.
1. The square
2. The square of an integer is said to be a
3. The square root of any number can be negative as well as positive.
4. The square of a number is always positive.
6. The square of an odd number is odd and an even number is even
7. For any positive integer x and y,
(a) Vxx y = √x x
8. V is the symbol used for square root.
(6)
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ſy
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Revision Exercise
1.
(d) 3162
2.
Find the possible number of digits in the squares of the following numbers.
(a) 7
(b) 58
(c) 175
Which of the following are perfect squares?
(a) 58564
(b) 13200
(c) 3130
Write the digit at units place in the square root of the following.
(d) 9850​

Answer 1

Answer:

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