Question

If rational number ends by digit its not a perfect square
ans? ​

Answer 1

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= 2, 3, 7 ,8

Answer 2

Answer:

1) All perfect square numbers end with 0 , 1 , 4 , 5 , 6 and 9 at unit place .

2) all imperfect square numbers ends with 2 , 3 , 7 , 8 at unit place .