| Simplify by rationalising denominator (6 - 4sqrt(3))/(6 + 4sqrt(3)) | 6 - 4 root 3 upon 6 + 4 |

| Simplify by rationalising denominator (6 - 4sqrt(3))/(6 + 4sqrt(3)) | 6 - 4 root 3 upon 6 + 4 |

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