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In A B C ,A(2pi)/3,b-c=3sqrt(3)c m and ...

In ` A B C ,A(2pi)/3,b-c=3sqrt(3)c m` and area of ` A B C=(9sqrt(3))/2c m^2,t h e nB C=` `6sqrt(3)` (b) `9c m` (c) `18 c m` (d) `27 c m`

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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