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If -i+3 is a root of x^(2)-6x+k=0. Then ...

If `-i+3` is a root of `x^(2)-6x+k=0`. Then the value of `k` is :

A

5

B

`sqrt(5)`

C

`sqrt(10)`

D

`10`

Text Solution

Verified by Experts

The correct Answer is:
D
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FULL MARKS-COMPLEX NUMBERS -ADDITIONAL QUESTIONS SOLVED
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  9. If p +iq = (a + ib)/(a - ib) then p^2 + q^2 = …………

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  12. If z(1)=4+5i and z(2)=-3+2i that (z(1))/(z(2)) is :

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  13. The conjugate of i^(13) + i^(14) + i^(15) + i^(16) is …………

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  14. If -i + 2 is one root of the equation ax^2 - bx + c = 0, then the othe...

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  16. If 2−i is one root of the equation ax^2+bx+c=0, and a,b,c are rational...

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  17. If -i+3 is a root of x^(2)-6x+k=0. Then the value of k is :

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  18. If omega is a cube root of unity, then the value of (1 - omega + omega...

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  20. If (z - 1)/(z + 1) is purely imaginary, then |z| is

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