计算 {-(a²/b)}²÷{-(a/b²)}³×(1/ab)^4
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计算 {-(a²/b)}²÷{-(a/b²)}³×(1/ab)^4
计算 {-(a²/b)}²÷{-(a/b²)}³×(1/ab)^4
计算 {-(a²/b)}²÷{-(a/b²)}³×(1/ab)^4
=[a^4/b^2]÷[-a^3/b^6]×[1/a^4b^4]
= —a^(4-3-4)b^[-2-(-6)-4]
=—a^(-3)b^0
=—a^(-3)