(10i)(3-i)/(3+i)(3-i)怎么算?复数的除法运算,

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(10i)(3-i)/(3+i)(3-i)怎么算?复数的除法运算,
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(10i)(3-i)/(3+i)(3-i)怎么算?复数的除法运算,
(10i)(3-i)/(3+i)(3-i)怎么算?
复数的除法运算,

(10i)(3-i)/(3+i)(3-i)怎么算?复数的除法运算,
=(30i-10i^2)/(9-i^2)
=(30i+10)/(9+1)
=3i+1