与式={-√6+√2i}/{a+√3i}
=(-√6+√2i)(a-√3i)/(a^2+3)
分子=√6-√6a+i(√2a+3√2)
√2a+3√2=0
a=-3
です。
与式={-√6+√2i}/{a+√3i}
=(-√6+√2i)(a-√3i)/(a^2+3)
分子=√6-√6a+i(√2a+3√2)
√2a+3√2=0
a=-3
です。
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