已知:a^2 b^2 c^2 2ab 2bc 2ca=0,化简代数式1/2a^3-1/2ab^2-1/2ac^2.
问题描述:
已知:a^2 b^2 c^2 2ab 2bc 2ca=0,化简代数式1/2a^3-1/2ab^2-1/2ac^2.
答
已知:a^2 b^2 c^2 2ab 2bc 2ca=0,化简代数式1/2a^3-1/2ab^2-1/2ac^2.