Value of tan9^@ - tan27^@ - tan63^@ + ta...

Value of `tan9^@ - tan27^@ - tan63^@ + tan81^@` is ?

A

1

B

2

C

3

D

4

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Verified by Experts

The correct Answer is:

D

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Value of tan9^@ - tan27^@ - tan63^@ + tan81^@ is ?
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