2m/(m/p1+m/p2)如何计算

网友回答

2m/(m/p1+m/p2)
=2m/[m(1/p1+1/p2)]
=2*p1*p2/(p1+p2)
======以下答案可供参考======
供参考答案1:
=2m/[m(p1+p2/p1p2)]=2p1p2/p1+p2
供参考答案2:
2m/(m/p1+m/p2)
=2/(1/p1+1/p2)
=2/[p2/(p1p2)+p1/(p1p2)]
=2/[p2/(p1p2)+p1/(p1p2)]
=2/[(p2+p1)/(p1p2)]
=2p1p2/(p2+p1)