Code Division Multiplexing (20 points). A. 3. For each of the following pair of vectors, determine whether they are orthogonal or not: a) (1, 1, 0) and (-1, 0, 1); b) (2, 2, 2) and (-1, -1,2); c) (1, 1, 1,1, 1, 1) and (1,-1, 1,-1,1,-1) Suppose two senders want to use the CDM scheme to send data through a shared media. The chip sequence and data value of each sender are shown below. Compute the final signal that will be transmitted via the media. Please show the steps. (Note: For this question you need to firgconvert the binary values into vectors of bits that use -1 to represent o.) B. Sender Chip SequenceData Value Bp 1110