If Delta = |[1, 3costheta, 1], [sintheta...

If `Delta = |[1, 3costheta, 1], [sintheta, 1, 3costheta], [1, sintheta, 1]|`, the maximum value of `Delta` is

A

-10

B

`-sqrt(10)`

C

`sqrt(10)`

D

10

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The correct Answer is:

D

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