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Rational and Irrational Numbers — MATHEMATICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9MATHEMATICSRational and Irrational Numbers1 Mark
MCQ
If $x=2-\sqrt{2}$, then $x-\frac{1}{x}=$
  • A
    4
  • B
    -4
  • C
    $2 \sqrt{2}$
  • ✓
    $-2 \sqrt{2}$
✓

Answer

Correct option: D.
$-2 \sqrt{2}$
D

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