计算:(1)5√12乘以3√18 (2)√54乘以(-√48) (3)√1.2乘以√3.6 (4)√18除以(√8乘以√
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计算:(1)5√12乘以3√18 (2)√54乘以(-√48) (3)√1.2乘以√3.6 (4)√18除以(√8乘以√27)
![计算:(1)5√12乘以3√18 (2)√54乘以(-√48) (3)√1.2乘以√3.6 (4)√18除以(√8乘以√](/uploads/image/z/4076138-2-8.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%281%295%E2%88%9A12%E4%B9%98%E4%BB%A53%E2%88%9A18+%282%29%E2%88%9A54%E4%B9%98%E4%BB%A5%28-%E2%88%9A48%29+%283%29%E2%88%9A1.2%E4%B9%98%E4%BB%A5%E2%88%9A3.6+%284%29%E2%88%9A18%E9%99%A4%E4%BB%A5%28%E2%88%9A8%E4%B9%98%E4%BB%A5%E2%88%9A)
(5√12)*(3√18)
=5*3*√(12*18)
=15√216
=15√(6^2*6)
=15*6√6
=90√6
(√54)*(-√48)
=-√(3^2*6*4^2*3)
=-3*4√18
=-12√(3^2*2)
=-36√2
(√1.2)*(√3.6)
=√(1.2^2*3)
=1.2√3
√18/[(√8)*(√27)]
=√[18/(8/27)]
=√(1/12)
=√(3/36)
=(√3)/6
=5*3*√(12*18)
=15√216
=15√(6^2*6)
=15*6√6
=90√6
(√54)*(-√48)
=-√(3^2*6*4^2*3)
=-3*4√18
=-12√(3^2*2)
=-36√2
(√1.2)*(√3.6)
=√(1.2^2*3)
=1.2√3
√18/[(√8)*(√27)]
=√[18/(8/27)]
=√(1/12)
=√(3/36)
=(√3)/6
计算:(1)5√12乘以3√18 (2)√54乘以(-√48) (3)√1.2乘以√3.6 (4)√18除以(√8乘以√
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