爱上海后花园

a的平方减a减1等于0 那a的4次方加a的四次方分之一等于多少

a^2a1=0a^21=aa1a=1a1a^2=1a^221a^2=1a^21a^2=3a^21a^2^2=9a^421a^4=9a^41a^4=7...

本文来自网络,不代表爱上海立场,如若转载,请注明出处://duanzhihua.cn/a1249805.html