Exercise 2.2 What binary number does this hexadecimal number represent:0x7FFF_FFFA? What decimal number does it represent? 0x7FFF_FFFAは2進で表すと、0111_1111 1111_1111 1111_1111 1111_1100。十進で表すと、2147483642。 Exercise 2.3 What hexa…