Suppose that R1 and R2 are reflexive relations on a set A. Which of the following statements is correct? (A) R1∩R2 is reflexive and R1UR2 is irreflexive. (B) R1∩R2 is irreflexive and R1UR2 is reflexive. (C) Both R1∩R2 and R1UR2 are reflexive. (D) Both R1∩R2 and R1UR2 are irreflexive.

Suppose that R1 and R2 are reflexive relations on a set A.

Which of the following statements is correct?

(A) R1∩R2 is reflexive and R1UR2 is irreflexive.

(B) R1∩R2 is irreflexive and R1UR2 is reflexive.

(C) Both R1∩R2 and R1UR2 are reflexive.

(D) Both R1∩R2 and R1UR2 are irreflexive.


by

1 Answer

Answer :

(C) Both R1∩R2 and R1UR2 are reflexive.
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What is the current flowing through R2 of the illustrated circuit if the voltage is 12 VDC and the resistance of R1 is 2 ohms, R2 is 3 ohms and R3 is 6 ohms? EL-0021 A. 2 amps B. 4 amps C. 6 amps D. 12 amps

Description : What is the current flowing through R2 of the illustrated circuit if the voltage is 12 VDC and the resistance of R1 is 2 ohms, R2 is 3 ohms and R3 is 6 ohms? EL-0021 A. 2 amps B. 4 amps C. 6 amps D. 12 amps

Last Answer : Answer: B

What is the current through R2 of the circuit illustrated if the resistances of R1 is 2 ohms, R2 is 4 ohms, and R3 is 4 ohms with a 6 volt battery? EL-0021 A. 0.5 amp B. 1.5 amps C. 3.0 amps D. 6 amps

Description : What is the current through R2 of the circuit illustrated if the resistances of R1 is 2 ohms, R2 is 4 ohms, and R3 is 4 ohms with a 6 volt battery? EL-0021 A. 0.5 amp B. 1.5 amps C. 3.0 amps D. 6 amps

Last Answer : Answer: B