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Tìm tất cả điểm yên ngựa của hàm f(x,y)=x.sin(y/3)

User Lionscribe
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2 Answers

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17 votes

Explanation:

điểm yên ngựa

x = 0

y = 0 hoặc y = 3pi / 2

User Bing
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21 votes
21 votes

Answer:

Write in English please

User Mustafamg
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