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If tan""pi/9,x and tan""(5pi)/18 are in ...

If `tan""pi/9,x` and `tan""(5pi)/18` are in A.P. and `tan""pi/9,y` and `tan""(7pi)/18` are also in A.P., then :

A

`x = y`

B

`x gt y`

C

`2x = y`

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
C
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