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The value of (lim)(xvecoo)[tan^(-1)(x+1)...

The value of `(lim)_(xvecoo)[tan^(-1)(x+1)/(x+2)-dotpi/4],w h e r e[x]` denotes greatest integer `lt=x ,` is `1/2` b. `-1/2` c.`1` d. `-1`

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