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The value of tan6^0tan42^0tan66^0tan78^0...

The value of `tan6^0tan42^0tan66^0tan78^0` is 1 (b) `1/2` (c) `1/4` (d) `1/8`

A

1

B

`1//2`

C

`1//4`

D

`1//8`

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The correct Answer is:
A
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