Multiple choice

How can the 2's complement be obtained from the given 1's complement of a number?

  1. By adding 1

  2. By subtracting 1

  3. By complementing each bit

  4. By changing the most significant bit to 1

  5. By changing the most significant bit to 0

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A Correct answer
Explanation

2's complement of a number is obtained by adding 1 to the 1's complement of that number.