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Which of the following are zeros of the ...

Which of the following are zeros of the quadratic equation `x^(2)+9=0`? (Note: i=`sqrt(-1)`)

A

`pm3`

B

`pm3i`

C

`pm8i`

D

`pm81i`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The roots of the quadratic equation x^(2)+2x+1=0 are:

    A
    Real and distinct
    B
    Real and equal
    C
    Distinct
    D
    Not real/imaginary

  • Which of the following are solutions to the quadratic equation (x-1)^(2)-(4)/(9) ?

    A
    `x=-(5)/(3), x=(5)/(3)`
    B
    `x=(1)/(3) x=(5)/(3)`
    C
    `x=(5)/(9), x=(13)/(9)`
    D
    `x=1pmsqrt((2)/(3))`

  • Which of the following is a solutions to the equation 4x^(5)+4x^(3)=360x ? (Note: i=sqrt(-1) )

    A
    `-10`
    B
    `isqrt(10)`
    C
    `10i`
    D
    `sqrt(10)`

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