(log6 2)^2+log6 3*log6 12+25^log5 2=??
注:log6 2意思为以6为底2的对数
要过程
參考答案:5
原式=(log6 2)^2+(log6 3)*(log6 2+log6 6)+(5*5)^log5 2
=(log6 2)^2+(log6 3)*[(log6 2)+1]+(5^log5 2)*(5^log5 2)
=(log6 2)^2+(log6 3)*(log6 2)+(log6 3)+2*2
=(log6 2)*[(log6 2)+(log6 3)]+(log6 3)+4
=(log6 2)*(log6 6)+(log6 3)+4
=(log6 2)+(log6 3)+4
=[log6 (2*3)]+4
=(log6 6)+4
=1+4=5