Mathematics, 17.10.2021 15:10 sduihasoj1703

Tính các đạo hàm riêng cấp 2 và vi phân a. z= e^(x^2+y^2)×sin^2×x b. Z=x×e(-y/x) c. z=arctan(xy) tính d^2×z

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Tính các đạo hàm riêng cấp 2 và vi phân a. z= e^(x^2+y^2)×sin^2×x b. Z=x×e(-y/x) c. z=arctan(xy) tín...

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