问题描述:
若a+b+c=0,且abc≠0,求a(1/b+1/c)+b(1/a+1/c)+c(1/a+1/b)的值
1.若a+b+c=0,且abc≠0,求a(1/b+1/c)+b(1/a+1/c)+c(1/a+1/b)的值
2.已知x、y、z满足x+1/y=4,y+1/z=1,z+1/x=7/3,求xyz的值.
1.若a+b+c=0,且abc≠0,求a(1/b+1/c)+b(1/a+1/c)+c(1/a+1/b)的值
2.已知x、y、z满足x+1/y=4,y+1/z=1,z+1/x=7/3,求xyz的值.
问题解答:
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