(x+1/x)(x²+1/x²)(x四次方+1/x四次方)(x²-1)速度回答 要过程 详细过程,说写得多 钱
问题描述:
(x+1/x)(x²+1/x²)(x四次方+1/x四次方)(x²-1)速度回答 要过程 详细过程,说写得多 钱
答
(x+1/x)(x²+1/x²)(x^4+1/x^4)(x²-1)=x(x+1/x)(x²+1/x²)(x^4+1/x^4)(x²-1)/x=x(x-1/x)(x+1/x)(x²+1/x²)(x^4+1/x^4)=x(x²-1/x²)(x²+1/x²)(x^4+1/x^4)=x...