√3 + 1/√3 - 1 + √3 - 1/√3 + 1
(√3 + 1)/(√3 - 1) + (√3 - 1)/(√3 + 1) =
((√3 + 1)² + (√3 - 1)²)/((√3 - 1)*(√3 + 1)) =
(3 + 2√3 + 1 + 3 - 2√3 + 1)/(3 - 1) = 8/2 = 4
pronto
2â3
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Verified answer
(√3 + 1)/(√3 - 1) + (√3 - 1)/(√3 + 1) =
((√3 + 1)² + (√3 - 1)²)/((√3 - 1)*(√3 + 1)) =
(3 + 2√3 + 1 + 3 - 2√3 + 1)/(3 - 1) = 8/2 = 4
pronto
2â3