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maxzilvova
@maxzilvova
July 2022
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№90 срочно нужна помощь
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sedinalana
Verified answer
X²-7xy=18y²
x²-7xy-18y²=0
решим относительно х
D=49y²+72y²=121y²
x1=(7y-11y)/2=-2y⇒x/y=-2y/y=-2
x2=(7y+11y)/2=9y⇒x/y=9y/y=9 наибольшее значение
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Answers & Comments
Verified answer
X²-7xy=18y²x²-7xy-18y²=0
решим относительно х
D=49y²+72y²=121y²
x1=(7y-11y)/2=-2y⇒x/y=-2y/y=-2
x2=(7y+11y)/2=9y⇒x/y=9y/y=9 наибольшее значение