Question

Q6.which of the following is not a perfect square 62500 57600 90000 63147

Answer 1

Answer:

All the digits accept 63147 are all perfect square

Step-by-step explanation:

62500=250*250

57600=240*240

90000=300*300

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Answer 2

Step-by-step explanation:

62147is not a perfect square.

because a square end with

${1}^{2} = 1 \\ {2}^{2} = 4 \\ 3 { }^{2} = 9 \\ {4}^{2} = 16 \\ {5}^{2} = 25 \\ {6}^{2} = 36 \\ {7}^{2} = 49 \\ {8}^{2} = 64 \\ {9}^{2} = 81 \\ {10 }^{2} = 100$

we see unit digit repeated if we continue......

number which not place in perfect square is

3,7,8 .

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