丨根号6-2丨+丨根号2-1丨-丨3-根号6丨

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丨根号6-2丨+丨根号2-1丨-丨3-根号6丨

丨根号6-2丨+丨根号2-1丨-丨3-根号6丨
=根号6-2+根号2-1-3+根号6
=2根号6+根号2-6

丨根号6-2丨+丨根号2-1丨-丨3-根号6丨
=√6-2+√2-1-(3-√6)
=2√6+√2

=(√6-2)+(√2-1)-(3-√6)
=√6-2+√2-1-3+√6
=2√6 + √2 - 6

=√6-2+√2-1-√6+3
=√2