By just observing the digit at ones place tell which of the following can be perfect square in 1026,1022,1027
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Answered by
0
Answer:
1026 can be a perfect square as a perfect square never ends in 2,3,7 and 8. But actually 1026 is not a perfect square.
Answered by
1
Answer:
If a number's unit digit is either 2,3,7,8 then it is not a perfect square
Hence, only 1026 may be a perfect square
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