K-map as used in class. 1. You must use the power-series expansion (only for non-decimal to decimal), successive division, and/or successive multiplication in any number conversion (a) Represent the octal number (137.6), in the base-3 number system, using up to 8 digits. (b) Represent the decimal number (-111) 10 in the 8-bit signed 2's complement binary number system, and then express it in 10 bits (signed 2's complement)