3) Consider the logical functions given below. fi (A, B, C) (2,3,4) f2 (A, B, C)=(0,1,3,6,7) (2 ma If 'f' is logic zero, then find the maximum number of possible minterms in function f3. 1 f 13 D 4) Two 4-bit 2's complement numbers 1011 and 0110 are added. Find the result and express it in 4-bit 2's complement notation. (2 marks) 5) Find the result of (45)10- (45)16 and express it in 6-bit 2's complement representation. (2 marks)