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If 2^a-b = 1 then the value of a-b is equal to _________

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If 2^a-b = 1 then the value of a-b is equal to _________

(a) 1

(b) 0

(c) 2

(d) none of the mentioned

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This interesting question is from Number Theory and Cryptography topic in division Number Theory and Cryptography of Discrete Mathematics

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Best answer
The correct choice is (b) 0

To elaborate: 1 = 2^0, so a-b = 0.

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