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Algebraic Identities — MATHS STD 8 — Question

ICSE BoardEnglish MediumSTD 8MATHSAlgebraic Identities1 Mark
MCQ
$\left(x+\frac{1}{x}\right)^2-\left(x-\frac{1}{x}\right)^2=?$
  • A
    $0$
  • ✓
    4
  • C
    2
  • D
    $2\left(x^2+\frac{1}{x^2}\right)$
✓

Answer

Correct option: B.
4
B

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