Multiple choice

How many fraction digits does 2-48 have?

  1. 24

  2. 47

  3. 49

  4. 48
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D Correct answer
Explanation

2^-48 equals 1 divided by 2^48, which requires 48 binary fraction digits to represent. In binary, this is 0.000...001 with 47 zeros followed by a 1 at the 48th position after the decimal point.

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