√18除以√8=? √0.4乘以√3.6=? √3分之2乘以√8分之27=? √2除以3√40=? 包过程请高手解答跪求……
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√18除以√8=? √0.4乘以√3.6=? √3分之2乘以√8分之27=? √2除以3√40=? 包过程请高手解答跪求……
√18除以√8=? √0.4乘以√3.6=? √3分之2乘以√8分之27=? √2除以3√40=? 包过程请高手解答
跪求……
√18除以√8=? √0.4乘以√3.6=? √3分之2乘以√8分之27=? √2除以3√40=? 包过程请高手解答跪求……
√18除以√8
=√(18÷8)
=√(9/4)
=3/2
√0.4乘以√3.6
=√(0.4×3.6)
=√1.44
=√1.2²
=1.2
√3分之2乘以√8分之27=
=√(2/3×8/27)
=√(16/81)
=4/9
√2除以3√40
=(1/3)√(2÷40)
=(1/3)√(1/20)
=(1/3)√(5/100)
=(1/3)(√5)/10
=(√5)/30
直接化简...一起放到根号里乘除
1.5
1.2
1.5
1/(6根号5)
√18除以√8=√(18/8)=√(9/4)=3/2
√0.4乘以√3.6=√(0.4*3.6)=√14.4=1.2
√3分之2乘以√8分之27=√(2*27)/(3*8)=√(9/4)=3/2
√2除以3√40=√2/360=√1/180=(√5)/30
√18÷√8= √(18/8) = √(9/4) = 3/2
√0.4×√3.6 = √(0.4×3.6) = √(0.4×0.4×3×3) = 1.2
√3分之2×√8分之27=√(2/3 × 27/8) = √9/4 = 3/2
√2 ÷ 3√40= 1/3 ×√2/40 = 1/3 ×√5/100 = √5 / 30
√18除以√8=√(18/8)=√(9/4)=3/2
√0.4乘以√3.6=√1/9=1/3
√3分之2乘以√8分之27=√(2/3)*(8/27)=√(16/81)=4/9
√2除以3√40=√2/√9*40=√(2/360)=√1/180=1/6√5