2log(2)根号30-log(2)3-log(2)5 求值
问题描述:
2log(2)根号30-log(2)3-log(2)5 求值
答
2log(2)根号30-log(2)3-log(2)5
=log₂(√30)²-log₂(3×5)
=log₂30-log₂15
=log₂(30/15)
=log₂2
=1