-7- If - x - frac - 1 - - 7 - 4 sqrt - 3 - - - and - y - frac - 1 - - 7 - 4 sqrt - 3 - - cdot - the value-

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"7. If \$ x = \\frac { 1 } { 7 + 4 \\sqrt { 3 } } \$ and \$ y = \\frac { 1 } { 7 - 4 \\sqrt { 3 } } \\cdot \$ find the value"

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"7. If \\( x = \\frac { 1 } { 7 + 4 \\sqrt { 3 } } \\) and \\( y = \\frac { 1 } { 7 - 4 \\sqrt { 3 } } \\cdot \\) find the value"