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^(-iBA),e^(2iC)):}|` is (where i=`sqrt(-1))`

A

`-1`

B

`-4`

C

`0`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:

B

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