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Let S={n∈N∣∣∣(0i10)n(abcd)=(abcd)∀ a,b,c,d∈R}, where i=√−1. Then the number of 2−digit numbers in the set S is

Answer» Let S={n∈N∣∣∣(0i10)n(abcd)=(abcd)∀ a,b,c,d∈R}, where i=√−1. Then the number of 2−digit numbers in the set S is


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