Which of the examples below expresses the distributive law? (A + B) + C = A + (B

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Question
Which of the examples below expresses the distributive law?
Options
A. (A + B) + C = A + (B + C)
B. A(B + C) = AB + AC
C. A + (B + C) = AB + AC
D. A(BC) = (AB) + C

Correct Answer

A(B + C) = AB + AC

Describing Logic Circuits problems

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7. Which statement below best describes a Karnaugh map?
Options
A. A Karnaugh map can be used to replace Boolean rules.
B. The Karnaugh map eliminates the need for using NAND and NOR gates.
C. Variable complements can be eliminated by using Karnaugh maps.
D. Karnaugh maps provide a visual approach to simplifying Boolean expressions.

8. The binary numbers A = 1100 and B = 1001 are applied to the inputs of a comparator. What are the output levels?
Options
A. A > B = 1, A < B = 0, A < B = 1
B. A > B = 0, A < B = 1, A = B = 0
C. A > B = 1, A < B = 0, A = B = 0
D. A > B = 0, A < B = 1, A = B = 1

10. Which of the following statements accurately represents the two BEST methods of logic circuit simplification?
Options
A. Boolean algebra and Karnaugh mapping
B. Karnaugh mapping and circuit waveform analysis
C. Actual circuit trial and error evaluation and waveform analysis
D. Boolean algebra and actual circuit trial and error evaluation

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