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Z=X^2*siny,求αZ*αZ/αx*αy
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Z=X^2*siny,求αZ*αZ/αx*αy
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答案和解析
Z=X^2*siny,
αZ/αx=2x*siny,
α^2Z/αxαy=2x*cosy,
αZ/αx=2x*siny,
α^2Z/αxαy=2x*cosy,
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