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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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Answer» `log_(x+1) (x^2-4)>1` `x in(2,oo)` `0ltx+1<1` `-1ltxlt0` this is not possible `x+1>1` `x>0` `x^2-4>x+1` `x^2-x-5>0` `x in((1+sqrt21)/2,oo)`. |
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