निम्न समीकरण को हल कीजिए - tan^(-1...

निम्न समीकरण को हल कीजिए -
`tan^(-1)(x-1)+tan^(-1)(x)+tan^(-1)(x+1)=tan^(-1) 3 x `

A

`-1`

B

`(1)/(2) `

C

1

D

2

Verified by Experts

The correct Answer is:

A

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