If A,B and C are angle of a triangle of ...

If A,B and C are angle of a triangle of a triangle ,the value of `|{:(e^(2iA),e^(-iC),e^(-iB)),(e^(-iC),e^(2iB),e^(-iA)),(e^(-iB),e^(-iA),e^(2iC)):}|` is (where i=`sqrt(-1))`

A

1

B

-1

C

-2

D

-4

Verified by Experts

The correct Answer is:

D

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