1.2 List the octal and hexadecimal numbers from 16 to 32. Using A and B for the last two digits, list the numbers from 8 to 28 in base 12. Convert the following numbers with the indicated bases to decimal: (a)* (4310) (b) (198),2 (c) (435) (d) (345) The solutions to the quadratic equation ?- 11x + 22 -0 are r = 3 and x = 6. What is the base of the numbers? 1.7 1.8 Convert the hexadecimal number 64CD to binary, and then convert it from binary to octal. Convert the decimal number 431 to binary in two ways: (a) convert directly to binary: (b) convert first to hexadecimal and then from hexadecimal to binary. Which method is faster? 1.10 Convert the following binary numbers to hexadecimal and to decimal: (a) 1.10010, (b) 110.010. Explain why the decimal answer in (b) is 4 times that in (a). 1.11 Perform the following division in binary: 111011 101. 1.14./Obtain the l's and 2's complements of the following binary numbers: (a) 00010000 (b) 00000000 (c) 11011010 (d) 10101010 (e) 10000101 (f) 11111111 1.17 Perform subtraction on the given unsigned numbers using the 10's complement of the subtrahend. Where the result should be negative, find its 10's complement and affix a minus sign. Verify your answers. (a) 4,637 - 2.579 (b) 125 - 1.800 (c) 2,043 - 4,361 (d) 1,631 - 745 Perform subtraction on the given unsigned binary numbers using the 2's complement of the subtrahend. Where the result should be negative, find its 2's complement and affix a minus sign. (a) 10011 - 10010 (b) 100010 -100110 (c) 1001 - 110101 (d) 101000 - 10101