Answer:
Explanation:
A. Max is correct But min will be max(N1,N2) i.e. N2.
B. max=N1, min=0(no common tuples in R1 and R2)
C. max=N1(R1 and R2 are disjoint sets), min=0(all tuples of R1 are present in R2)
D. max=N1*N2, min=N1*N2
Answer:
1. Volume check
2. Manage Device
Explanation:
1. Verify the volume is turned up in Windows and on the speakers. This can be done easily by going to the volume control icon on the computer.
2. Check Device Manager to see if the sound card is recognized and has no errors. This can be done by navigating thus:
My PC (Right click) > Manage > Device manger
Cheers