数学2次根式计算!
(1)√3/8-(-3/4√27/2+3√1/6)(2)2/3√9x+6√x/4-2x√1/x(3)2/a√4a+√1/a-2a√1/a^3(4)√0.2m+1/m√5m...
(1)√3/8-(-3/4√27/2+3√1/6)(2)2/3√9x+6√x/4-2x√1/x(3)2/a√4a+√1/a-2a√1/a^3(4)√0.2m+1/m√5m^3-m√125/m(5)√a+b/a-b-√a-b/a+b-√1/a^2-b^2(a>b>0)解不等式(6)2x+√32<x+√2(7)x+√6>3x+√1.5(8)√27-√75(9)2√8+3/2√18-1/2√32(10)2√12-4√1/27+3√48(11)3√40-√2/5+2√0.1(12)√0.5+√72/2-1/5√50(13)3/2√3/2-5/2√3/2-3√1/6+1.7√6(14)(√45+√27)+(√1又1/3-√125)(15)(4√0.5-2√1/3)-(4√0.125-√12)(16)2/3√9x+6√x/4-2x√1/x
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(1)√3/8-(-3/4√27/2+3√1/6)
=1/4√6+3/8√6-1/2√6
=1/8√6
(2)2/3√9x+6√x/4-2x√1/x
=2√3x+3/2√x-2√x
=5/2√x
(3)2/a√4a+√1/a-2a√1/a^3
=1/a√a+1/a√a-2/a√a
=0
(4)√0.2m+1/m√5m^3-m√125/m
=1/5√5m+√5m-5√5m
=-19/5√5m
(5)√a+b/a-b-√a-b/a+b-√1/a^2-b^2(饥敏a>b>0)
=1/(a-b)√(a²-b²)-1/(a+b)√(a²-b²)-1/(a²-b²)√禅肢顷(a²-b²)
=(a+b-a+b-1)/(a²-b²)√(a²-b²)
=(2b+1)/(a²-b²)√(a²-b²)
解不等式
(6)贺陆2x+√32<x+√2
2x-x<√2-4√2
x<-3√2
=1/4√6+3/8√6-1/2√6
=1/8√6
(2)2/3√9x+6√x/4-2x√1/x
=2√3x+3/2√x-2√x
=5/2√x
(3)2/a√4a+√1/a-2a√1/a^3
=1/a√a+1/a√a-2/a√a
=0
(4)√0.2m+1/m√5m^3-m√125/m
=1/5√5m+√5m-5√5m
=-19/5√5m
(5)√a+b/a-b-√a-b/a+b-√1/a^2-b^2(饥敏a>b>0)
=1/(a-b)√(a²-b²)-1/(a+b)√(a²-b²)-1/(a²-b²)√禅肢顷(a²-b²)
=(a+b-a+b-1)/(a²-b²)√(a²-b²)
=(2b+1)/(a²-b²)√(a²-b²)
解不等式
(6)贺陆2x+√32<x+√2
2x-x<√2-4√2
x<-3√2
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