设log(a)2/3下面
设log(a)2/3下面
设log(2)(3)=a,log(3)(7)=b,以a,b表示log(21)(56)
设log底数3真数2=a,则log底数2真数9等于多少?
log a(2/3)
设a=log以2为底5,b=log以3为底7,c=log以0.5为底9,则a,b,c的大小关系为()
利用对数的换底公式化简下列 1.log(a)c×log(c)a 2.log(2)3×log(3)4×log(4)5×lo
已知log(a)(2/3)
设log√3 2=1-a/a则log12 3=
设A^2+B^2=C^2 求证 log以(C+B)为底A的对数+log(C-B)A=2log(C+B)*log(C-B)
设a>b>1,log(a)b+log(b)a=10/3,则log(a)b-log(b)a=
设y=log(a)((x-3)/(x+3)) (a>0,a≠1)的定义域为[s,t),值域为(log(a)((at-a)
设a=1/log(4)3+1/log(7)3,求证a属于(3,4)