复数z=1+3i/1+i的共轭复数是…急啊!复数z=1+3i/1+i的共轭复数是A.2+i B.2-i C.1+i D.1-i
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![复数z=1+3i/1+i的共轭复数是…急啊!复数z=1+3i/1+i的共轭复数是A.2+i B.2-i C.1+i D.1-i](/uploads/image/z/5532881-41-1.jpg?t=%E5%A4%8D%E6%95%B0z%3D1%2B3i%26%2347%3B1%2Bi%E7%9A%84%E5%85%B1%E8%BD%AD%E5%A4%8D%E6%95%B0%E6%98%AF%E2%80%A6%E6%80%A5%E5%95%8A%21%E5%A4%8D%E6%95%B0z%3D1%2B3i%26%2347%3B1%2Bi%E7%9A%84%E5%85%B1%E8%BD%AD%E5%A4%8D%E6%95%B0%E6%98%AFA.2%2Bi+B.2-i+C.1%2Bi+D.1-i)
复数z=1+3i/1+i的共轭复数是…急啊!复数z=1+3i/1+i的共轭复数是A.2+i B.2-i C.1+i D.1-i
复数z=1+3i/1+i的共轭复数是…急啊!
复数z=1+3i/1+i的共轭复数是A.2+i B.2-i C.1+i D.1-i
复数z=1+3i/1+i的共轭复数是…急啊!复数z=1+3i/1+i的共轭复数是A.2+i B.2-i C.1+i D.1-i
z=(1+3i)/(1+i)
=(1+3i)(1-i)/(1²-i²)
=2+i
所以z的共轭复数为2-i
选B
答案是B吧,你再算算,我算的是B