Answer:
i) (121)^1/2 = 11;
11*11 = 121
ii) (12321)^1/2 = 111;
111*111 = 12321
iii) (1234321)^1/2 = 1111;
1111*1111 = 1234321
iiii) (123454321)^1/2 = 11111;
11111*11111 = 123454321
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