# Find the value of

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if $a=\frac { \sqrt { 5 }+1 }{ \sqrt { 5 } – 1 }$ and  b= $\frac { \sqrt { 5 } -1 }{ \sqrt { 5 } +1 }$ then the value of

$\frac { { a }^{ 2 }+ab+{ b }^{ 2 } }{ { a }^{ 2 }-ab+{ b }^{ 2 } }$ is

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