Question

In eight bit two's complement notation write down the binary for -125

a. 0111 1110
b. 1000 0010
c. 1000 0011
d. 125 is too large to represent in 8 bits 2's complement

Answer 1

The two's complement binary representation of -125 in an eight-bit format is 1000 0011.

Step-by-step explanation:

To represent the number -125 in eight-bit two's complement notation, you would perform the following steps:

1. Write the binary equivalent of the positive number 125, which is 0111 1101.
2. Invert all the bits to get the complement, resulting in 1000 0010.
3. Add 1 to the least significant bit to get 1000 0011, which is the two's complement representation of -125 in eight-bit binary.

Therefore, the correct answer is c. 1000 0011.