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/sci/ - Science & Math

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>> No.4339266 [View]
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4339266

(5 - x) * (13 - y) + xy + z = 65
z² = (13 - y)² + (5 - x)²
x² + y² = 1

http://www.wolframalpha.com/input/?i=%285+-+x%29+*+%2813+-+y%29+%2B+xy+%2B+z+%3D+65%2C+z%C2%B2+%3D+%
2813+-+y%29%C2%B2+%2B+%285+-+x%29%C2%B2%2C+x%C2%B2+%2B+y%C2%B2+%3D+1

z= 13.3258

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