由√3是a与b的等差中项
则:2√3=a+b
由于:a^x=b^y=3
则:x=loga(3),y=logb(3)
则:1/x+1/y
=1/[loga(3)]+1/[logb(3)]
=1/[lg3/lga]+1/[lg3/lgb]
=lga/lg3+lgb/lg3
=log3(a)+log3(b)
=log3(ab)
由于:a
由√3是a与b的等差中项
则:2√3=a+b
由于:a^x=b^y=3
则:x=loga(3),y=logb(3)
则:1/x+1/y
=1/[loga(3)]+1/[logb(3)]
=1/[lg3/lga]+1/[lg3/lgb]
=lga/lg3+lgb/lg3
=log3(a)+log3(b)
=log3(ab)
由于:a