求救啊 lg5*lg8000+(lg2)^2+lg0.06-lg6
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![求救啊 lg5*lg8000+(lg2)^2+lg0.06-lg6](/uploads/image/z/1344702-30-2.jpg?t=%E6%B1%82%E6%95%91%E5%95%8A+lg5%2Alg8000%2B%28lg2%29%5E2%2Blg0.06-lg6)
求救啊 lg5*lg8000+(lg2)^2+lg0.06-lg6
求救啊 lg5*lg8000+(lg2)^2+lg0.06-lg6
求救啊 lg5*lg8000+(lg2)^2+lg0.06-lg6
lg5*lg8000+(lg2)^2+lg0.06-lg6
=lg(10/2)*lg8*1000+(lg2)^2+lg6/100-lg6
=(1-lg2)(3lg2+3)+(lg2)^2+lg6-2-lg6
=3(1-lg2)(lg2+1)+(lg2)^2+lg6-2-lg6
=3[1-(lg2)^2]+(lg2)^2-2
=1-2(lg2)^2
0.8187618834