Which of the following bit patterns (represented in hexadecimal notation)represents a negative number in two's complement notation?
A) 7F
B) 55
C) A6
D) 08

Question

Quizplus · Accepted Answer

In two's complement notation, the leftmost bit represents the sign of the number (0 for positive, 1 for negative). Therefore, the bit pattern must start with 1 to represent a negative number. Only choice C (A6) starts with 1, indicating a negative value.

Which of the Following Bit Patterns (Represented in Hexadecimal Notation)represents