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Complex Numbers question

2021 · 25 Feb · Shift 2 · Q33

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JEE Main
Mathematics
Complex Numbers
2021 · 25 Feb · Shift 2 · Q33

Complex Numbers question

2021 · 25 Feb · Shift 2 · Q33

JEE MainMathematicsComplex NumbersMCQ+4 / −1

If

\alpha

,

\beta\in

R are such that 1

-

2i (here i2 =

-

1) is a root of z2 +

\alpha

z +

\beta

= 0, then (

\alpha-\beta

) is equal to :

A
$-$ 7
B
7
C
3
D
$-$ 3

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