根号的乘除运算1)√6×√15
问题描述:
根号的乘除运算1)√6×√15
1)√6×√15
(2)1/4√12a×3√3a
(3)3√xy×1/3√1/x
(4)√24×√4.5
(5)√0.4×√3.6
(6)√2/3×√27/8
(7)5√45×3/2√2(7/2)[2(7/2)就是二又二分之七]
(8)√2/3÷√3¼
(9)9√1/45÷3/2√2(3/2)
(10)2√18×√3/4÷5√2
(11)2√105÷√21×(-2√5)
(12)3√12×(-2√10)×(-5√50)
(13)√27÷(√18×√8)
答
1.原式=√90=3√102.原式=(1/4×3)√36a^2=(3/4)×6×|a|=(9/2)|a|3.原式=(3×1/3)√y=√y4.原式=√108=6√35.原式=√2/5×√18/5=√36/25=6/56.原式=√9/4=3/27.原式=15√5×(3/2)√11/2=15√5×[(3√22)/4]=(45√1...