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If x = tan'(pi)/(18) then 3x^(6) - 27x^...

If `x = tan'(pi)/(18) ` then `3x^(6) - 27x^(4) + 33x^(2)` is equal to -

A

1

B

2

C

`3sqrt(3)`

D

`1//3`

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The correct Answer is:
A
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