if 4x+i(3x-y)=3-6i for which x,y belongs with R, find x and y?
回答 (1)
2015-08-31 1:27 pm
4x + i.(3x - y) = 3 - 6i
Real parts must be equal:
4x = 3
→ x = 3/4
Imaginary parts must be equal:
(3x - y) = - 6
3x - y = - 6
y = 3x + 6 → recall: x = 3/4
y = (9/4) + (24/4)
→ y = 33/4
Real parts must be equal:
4x = 3
→ x = 3/4
Imaginary parts must be equal:
(3x - y) = - 6
3x - y = - 6
y = 3x + 6 → recall: x = 3/4
y = (9/4) + (24/4)
→ y = 33/4
收錄日期: 2021-04-21 13:51:56
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https://hk.answers.yahoo.com/question/index?qid=20150831031723AAJgOsq