三道二次根式。帮我快。
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发布时间:2024-10-20 16:23
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热心网友
时间:2024-11-06 05:51
俊狼猎英团队为您解答
√5分之√20-1
=√(20/5)-1
=√4-1
=2-1
=1
2分之3√20乘(-3分之1√48)
=3√5(-4√3/3)
=-4√15
√a的平方b除√ab乘√a分之1
=√[(a^2b*1/(ab)*(1/a)]
=√1
=1
热心网友
时间:2024-11-06 05:56
√20/√5-1
=√(5X4)-1
=√4-1
=2-1
=1
(3√20/2)/(√48/-3)
=[3√(5X4)/2]/[√(16X3)/-3]
=3√5/(4√3/-3)
=-4√15
[√(a²b)/√(ab)]X1/√a
=(a√b/√ab)X1/√a
=√aX1/√a
=1
热心网友
时间:2024-11-06 05:56
√20/√5-1
=√(5X4)-1
=√4-1
=2-1
=1
(3√20/2)/(√48/-3)
=[3√(5X4)/2]/[√(16X3)/-3]
=3√5/(4√3/-3)
=-4√15
[√(a²b)/√(ab)]X1/√a
=(a√b/√ab)X1/√a
=√aX1/√a
=1
热心网友
时间:2024-11-06 05:56
俊狼猎英团队为您解答
√5分之√20-1
=√(20/5)-1
=√4-1
=2-1
=1
2分之3√20乘(-3分之1√48)
=3√5(-4√3/3)
=-4√15
√a的平方b除√ab乘√a分之1
=√[(a^2b*1/(ab)*(1/a)]
=√1
=1