问题
填空题
化简:lg20+log10025+2
|
答案
lg20+log10025+2
×3
×6 12
=1+lg2+lg5+2×33 3 2
×31 2
×21 6
×31 3
×2-1 3
=2+2×3=81 3
故答案为:8
化简:lg20+log10025+2
|
lg20+log10025+2
×3
×6 12
=1+lg2+lg5+2×33 3 2
×31 2
×21 6
×31 3
×2-1 3
=2+2×3=81 3
故答案为:8