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If the equation z^4+a1z^3+a2z^2+a3z+a4=0...

If the equation `z^4+a_1z^3+a_2z^2+a_3z+a_4=0` where `a_1,a_2,a_3,a_4` are real coefficients different from zero has a pure imaginary root then the expression `(a_3)/(a_1a_2)+(a_1a_4)/(a_2a_3)` has the value equal to

A

0

B

1

C

`-2`

D

2

Text Solution

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The correct Answer is:
B
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