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رابطه زیر را در نظر بگیرید. $$ { { r ^ 2 } + { z ^ 2 } = { 100 } } $$ این رابطه چه صفحهای را مشخص میکند؟ برای تحلیل بهتر این رابطه، آن را به دستگاه مختصات کارتزین منتقل میکنیم. برای اینکار، از رابطه زیر برای تبدیل شعاع r به دستگاه مختصات کارتزین استفاده میشود. $$ { begin {align*} { r ^ 2 } = { x ^ 2 } + { y ^ 2 } end{align*} } $$ بنابراین راب...
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