åªæ¯æ®éçå导å¾å®¹æåï¼æå¦ä¸ä¸ªåéå½å¸¸éå°±å¯ä»¥äºãå
ååå½æ°ä¸ºe^[(x^3+y^3)ln(x^2+y)]ï¼
åå
³äºxçå导=f(x,y)[3x^2·ln(x^2+y)+2x(x^3+y^3)/(x^2+y)].
èå
³äºyçå导=f(x,y)[3y^2·ln(x^2+y)+(x^3+y^3)/(x^2+y)].
温馨提示:答案为网友推荐,仅供参考