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The true solution set of inequality (log...

The true solution set of inequality `(log)_((x+1))(x^2-4)>1` is equal to `2,oo)` (b) `(2,(1+sqrt(21))/2)` `((1-sqrt(21))/2,(1+sqrt(21))/2)` (d) `((1+sqrt(21))/2,oo)`

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