MCQ
Which of the following is function
- A$y = \sqrt x - \left| x \right|;\,\,x \in R$
- ✓$y = \sqrt x - \left| x \right|;\,\,x \ge 1$
- C$x = {y^2}$
- Dnone
✓
Answer
Correct option: B.
$y = \sqrt x - \left| x \right|;\,\,x \ge 1$
b
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