(x+√3i)^3=log√2(下标)1/2^4 求x,
问题描述:
(x+√3i)^3=log√2(下标)1/2^4 求x,
√3i这是√乘于i。i^2=-1
答
log√2(下标)1/2^4
=log√2(下标)(1/√2)^8
=log√2(下标)(√2)^(-8)
=-8
(x+√3i)^3=-8
x+√3i=-2
x=-2-√3i