(1+p)²(1+q²)-(1+q)²(1+p²)_数学解答

(1+p)²(1+q²)-(1+q)²(1+p²)

人气：303 ℃　时间：2020-05-05 00:59:24

解答

(1+p)²(1+q²)-(1+q)²(1+p²)=（1+p²+2p）(1+q²)-(1+q²+2q)(1+p²)=1+q²+p²+p²q²+2p+2pq²-1-p²-q²-p²q²-2q-2p²q=2(p-q)+2...