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If x, y , z are in A.P and tan^-1 x , ta...

If x, y , z are in A.P and `tan^-1 x , tan^-1 y ` and `tan^-1 z` are also in A.P.,then

A

2x = 3y = 6z

B

6x = 3y = 2z

C

6x = 4y = 3z

D

x= y = z

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The correct Answer is:
D
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