Q. When [x + (1/x)] = 5, then what is the value of [x – (1/x)]?
A) ± √22
B) 11
C) ± √21
D) 21
✔ Correct Answer: ± √21
Exam Insight
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A) ± √22
B) 11
C) ± √21
D) 21
✔ Correct Answer: ± √21
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