2lg根号2+lg5的值为
问题描述:
2lg根号2+lg5的值为
答
2lg(√2)+lg5
=lg(√2)²+lg5
=lg2+lg5
=lg10
=1
2lg根号2+lg5的值为
2lg(√2)+lg5
=lg(√2)²+lg5
=lg2+lg5
=lg10
=1