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katiailina200
@katiailina200
July 2022
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Помогите решить систему уравнений:
х^2+4у^2=25
3х^2+12у^2=25х
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Answers & Comments
Bobdeb
3х^2+12у^2=75
3х^2+12у^2=25х
вычитаем из 2-го первое:
75-25х=0
х=3 решаем дальше:
3*9+12у^2=75
12у^2=48
у^2=4
у=+-2
ответ: х=3 у=+-2
2 votes
Thanks 5
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Answers & Comments
3х^2+12у^2=25х
вычитаем из 2-го первое:
75-25х=0
х=3 решаем дальше:
3*9+12у^2=75
12у^2=48
у^2=4
у=+-2
ответ: х=3 у=+-2