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Question

Given Δ=∣ ∣P2ii+12+iq3+i1i3ir∣ ∣, Δ is

A

Real

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B

Imaginary

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C

Complex

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D

Cannot be determined

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Solution

The correct option is A

Real


Since, Δ=¯Δ, as we know Δ of Symmetric matrix is always real.


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