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One’s complement in binary is defined as _________

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One’s complement in binary is defined as _________

(a) Flipping each binary bit

(b) Adding one to the binary number

(c) Flipping only bits having zero in it

(d) None of the mentioned

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Question is from Number Theory topic in chapter Number Theory and Cryptography of Discrete Mathematics

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The correct choice is (a) Flipping each binary bit

The explanation is: While taking 1’s complement we replace 1 with zero and vice versa.

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