(1)-√7÷3√14/15×3/2√5/2
问题描述:
(1)-√7÷3√14/15×3/2√5/2
(2)√xy的三次方÷(-1/2√X三次方y²)
(3)√ab三次方÷(-3√b/2a)×√2a
(4)√18×50
(5)√(26/25)²-(2/5)²
(6)-5√2/2√50
(7)4xy/√2XY
(8)√a²b²+a四次方b²(a≥0,
答
(1)-√7÷3√14/15×3/2√5/2=[(-√7)*15*3√5]/[3(√14)*2*2]=15√10/8(2)√xy的三次方÷(-1/2√X三次方y²)=[y√(xy)]÷[-xy√x/2]=2√y/x(3)√ab三次方÷(-3√b/2a)×√2a=(b√ab)÷(-3√b/2a)×√2a...