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Complex Numbers and Quadratic Equations — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsComplex Numbers and Quadratic Equations1 Mark
MCQ
$0 + 0 i$ is $...........$ for complex number $z.$
  • A
    additive inverse.
  • ✓
    additive identity element.
  • C
    multiplicative identity element.
  • D
    multiplicative inverse.
✓

Answer

Correct option: B.
additive identity element.
On adding zero $(0 + 0 i)$ to a complex number, we get same complex number
so $0 + 0 i$ is additive identity
element for complex number $z.$
i.e. $z + 0 = z.$

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