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Verified answer
√2 per (√6 - √ 2) x (√6 + √2) per (√6 + √2) =√2(√6 + √2) per (√6 + √2)(√6 - √2) =
2√3 + 2 / 6 - 2=
2√3 + 2 / 4 =
1/4 (2√3 + 2) (D)
花丸で