isha123

Relation Schema: U(A,B,C,D,E,F) FD's: AC-->F B-->D AB-->CEF ACE-->B AEF-->BC I found the candidate keys to be AB,ACE,ADEF.is this right? And I would greatly appreciate it if someone find a simpler...

#-Link-Snipped-# #-Link-Snipped-# I actually came across this while reading digital data transmission in computer networks.

#-Link-Snipped-# thankyou so much

I read that when voltage level is constant for a while,spectrum creates very low frequencies.How are voltage levels related to frequency?