1/2a^8b^8c^5/(-6a^3b^3c^3)/(3a^2b^2c^2),其中ab=-1

1/2a^8b^8c^5/(-6a^3b^3c^3)/(3a^2b^2c^2),其中ab=-1
1/2a^8b^8c^5/(-6a^3b^3c^3)/(3a^2b^2c^2),其中ab=-1

1/2a^8b^8c^5/(-6a^3b^3c^3)/(3a^2b^2c^2),其中ab=-1
原式=（-3a^5b^5c²）÷3a²b²c²
=-a³b³
当ab=-1
∴a=1 b=-1
∴原式=1

化简此式得-((ab)^3)/36=1/12.
(1/2a^8b^8c^5)x(1/(-6a^3b^3c^3))x(1/(3a^2b^2c^2))
=(1/2a^3b^3)/(-18)=-((ab)^3)/36=1/12.