Describe how you would define the relation Brother-in-Law whose tuples have the form (x, y) with x being the brother-in-law of y. b. Give appropriate relational algebra and SQL expressions that return the relation Brother-in-Law.

After you clean an engine with hot water spray, it seems to stall; when it doesn't stall, it's idling noisily. technician a says to check for loose bolts on the flex plate near the torque converter. technician b says to wipe down the spark plug wires and the distributor cap. who is correct? a. technician a b. both technicians a and b c. technician b

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication

Fill in the blank; "as well as their traditional role of computing data, computers are also extensively used "