a = \frac { 1 } { 2 + \sqrt { 3 } } \text { and } b = \frac { 1 } { 2 – InterviewSolution

1.	a = \frac { 1 } { 2 + \sqrt { 3 } } \text { and } b = \frac { 1 } { 2 - \sqrt { 3 } } \text { then the value of } 2 a ^ { 2 } + 3 a b - 2 b ^ { 2 }
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