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If tan^(-1)(a+x)/a+tan^(-1)(a-x)/a=pi/6,...

If `tan^(-1)(a+x)/a+tan^(-1)(a-x)/a=pi/6,t h e nx^2=` `2sqrt(3)a` (b) `sqrt(3)a` (c) `2sqrt(3)a^2` (d) none of these

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If tan^(-1)(a+x)/a+tan^(-1)(a-x)/a=pi/6,t h e nx^2= (a) 2sqrt(3)a (b) sqrt(3)a (c) 2sqrt(3)a^2 (d) none of these

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