If a relation R on R is defined by aRb if |a| ≤ b, then the domain of R is:
If a relation R on R is defined by aRb if |a| ≤ b, then the domain of R is:
- A. [0, ∞)
- B. R
- C. (−∞, 0]
- D. R − {0}
Answer: B) R
Explanation: For any a ∈ R, we can find b such that |a| ≤ b (e.g., b = |a|). So every real number a is related to some b. Hence domain = R.
0 Answers
Log in to post your own answer or join the discussion.
No comments yet — start the discussion.