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When we perform subtraction on -7 and 1 the answer in 2’s complement form is _________

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When we perform subtraction on -7 and 1 the answer in 2’s complement form is _________

(a) 1010

(b) 1110

(c) 0110

(d) 1000

This question was posed to me in exam.

My doubt stems from Numbers and Arithmetic Operations topic in division Machine Instructions and Programs of Computer Architecture

1 Answer

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Best answer
Right choice is (d) 1000

Best explanation: First the 2’s complement is found and that is added to the number and the overflow is ignored.

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