Mathematics
Senior High
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(2)教えてください🥲
練習
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(1) a2+ab+ b'≧0
次の不等式を証明せよ。 また,等号が成り立つのはどのようなときか。
(2) (a2+62)(x2+y2)≧(ax+by)2
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すごい分かりやすいです!
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