ãã解ï¼å享ä¸ç§è§£æ³ã
ãã设y1=x^(a^x)ï¼y2=a^(x^x)ãy3=x^(x^a)ï¼åå«åèªç¶å¯¹æ°ï¼åæ±å¯¼ï¼
ããâ´(y1)'=(y1)(a^x)(lnalnx+1/x)ã(y2)'=(y2)(x^x)(lna)(lnx+1)ã(y3)'=(y3)[x^(a-1)](alnx+1/x)ï¼
ããâ´y'=(y1)'+(y2)'+(y3)'=(y1)(a^x)(lnalnx+1/x)+(y2)(x^x)(lna)(lnx+1)+(y3)[x^(a-1)](alnx+1/x)ãå
¶ä¸ï¼y1=x^(a^x)ï¼y2=a^(x^x)ãy3=x^(x^a)ã
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