1/3√x^4y×( -1/4√y²/x)÷(-1/6√x²y) (怎么算)

问题描述:

1/3√x^4y×( -1/4√y²/x)÷(-1/6√x²y) (怎么算)

1/3√x^4y×(-1/4√y^2/x)÷(-1/6√x^2y)
=x^2√y/3×y√x/4x×6√y/xy
=y√x/2