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√64/9乘以√169/144=?3/1√90乘以2/1√40=?√18除以{3√2乘以2√2}=?-√1.1/√2.7乘以√33=?
人气:248 ℃ 时间:2020-06-21 12:23:21
解答
√64/9乘以√169/144
=√(64/9)*√(169/144)
=8/3*13/12
=26/9
3/1√90乘以2/1√40
= √(90)/3*√(40)/2
=3√(10)/3*2√(10)/2
=√(10)*√(10)
=10
√18除以{3√2乘以2√2}
=√(18)/{6√2*√2}
=3√(2)/{6*2}
=√(2)/4
√1.1/√2.7乘以√33
=√(1.1)*[√(33)/√(2.7)]
=√(1.1)*[√(11)/√(0.9)]
=√(1.1)*[√(110)/√(9)]
=√(1.1*110)/3
=√(11*11)/3
=11/3
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