根号1又1/3÷根号2又1/3÷根号1又2/5

根号1又1/3÷根号2又1/3÷根号1又2/5
=√(4/3)÷√(7/3)÷√(7/5)
=√(4/3÷7/3÷7/5)
=√(4/3×3/7×5/7)
=√(20/49)
=√(5×4/49)
=(√5)×√(4/49)
=(√5)×2/7
=(2√5)/7
(3次根号-8×根号12)÷根号3
=[ ³√(-8) ×√12 ]÷√3
=(-2×2√3)÷√3
=-4√3÷√3
=-4
(2-3根号1/3)×根号6/根号2
=[2-3√(1/3)]×√6/√2
=[2-3√(3/9)]×(√3×√2)/√2
=[2-3×(√3)/3]×√3
=(2-√3)×√3
=2√3 -3
(根号2-1)4次(3+2根号2)
=(√2 -1)^4 (3+2√2)
=(√2 -1)²(√2 -1)²(√2 +1)²
=(√2 -1)²[(√2 -1)(√2 +1)]²
=(√2 -1)²(√2² -1²)²
=(√2 -1)²(2-1)²
=(√2 -1)²
=3-2√2
(2根号3-5)(根号3-1)
=(2√3 -5)(√3 -1)
=2√3×√3-2√3×1-5×√3+5×1
=6-2√3-5√3+5
=11-7√3

你文字表述有歧义啊，拍照试试