(2011•琼海一模)设3a=4b=m,且1a+1b=2,则m=( )
(2011•琼海一模)设3a=4b=m,且1a+1b=2,则m=( )
设2a=5b=m,且1a+1b=2,则m=( )
设2a=5b=m,且1/b+1/a=2,则m= ?
设2∧a=5∧b=m,且1/a+1b=2,则m等于
设a=(2,1),b=(m,3),且向量a平行向量b,求m的值
设2的a次方=5的b次方=m,且1/a+1/b=2,则m=( )
设2^a=5^b=m,且1\a+1\b=2,则m等于多少(要过程)
"设a^2=b^2=m(a>0,b>0),且a+b=6,则m等于"
已知向量a=(1,2),b=(cosα,sinα),设m=a+tb(t为实数),若a⊥b且a-b与m的夹角为π/4,则t
1.设A(3,-2),B(3,M),且AB=2,则M=_______
已知向量a=(2,4),b=(m,-1) ,且a⊥b则实数m=多少
设2∧a=5∧b=m,且1/a+1/b=2,求m