1/6√1又3/5×(-5√3又√3/5)
=1/6√(8/5)×(-5/3√(3/5)
=-5/18√(24/25)
=-5/18×2/5√6
=-1/9√6
(2)√8/a×√2a/b
=√(8/a×2a/b)
=√(16/b)
=4/b(√b)
(3)√2x乘以√2y乘以√x
=√(2x*...
1/6√1又3/5×(-5√3又√3/5)
=1/6√(8/5)×(-5/3√(3/5)
=-5/18√(24/25)
=-5/18×2/5√6
=-1/9√6
(2)√8/a×√2a/b
=√(8/a×2a/b)
=√(16/b)
=4/b(√b)
(3)√2x乘以√2y乘以√x
=√(2x*...