loga(3/2)>4若0loga(x)是减函数4=loga(a^4)loga(3/2)=loga(a^4)所以3/2<唤饥档a^4因为0所以a^4>3/2不成立肢者若a>1loga(x)是增函数loga(3/2)>loga(a^4)所以3/2>a^4因为a>1,所以a^4>1所以1所以1
(-2/3)×(-5/6)-(-3/正迟4)÷(举御李-4/9)+(-5/6+2/3)÷(-7/12)×7/2=5/拆尺9-27/16+(1/6)×(12/7)×7/2=80/144-243/144+144/144=-19/144