4(a)的2/3次方b的负1/3次方除以(-2/3a的负1/3次方b的负1/3次方)
问题描述:
4(a)的2/3次方b的负1/3次方除以(-2/3a的负1/3次方b的负1/3次方)
答
解 由题意得
4a^2/3b^(-1/3)÷(-2/3)a^(-1/3)b^(-1/3)
=-4*3/2a^(2/3+1/3)b^(-1/3+1/3)
=-6a^1b^0
=-6a