己知lg2=0.3010,1g7=0.8451,求lg28的值?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/10/06 18:43:44
己知lg2=0.3010,1g7=0.8451,求lg28的值?己知lg2=0.3010,1g7=0.8451,求lg28的值?己知lg2=0.3010,1g7=0.8451,求lg28的值?lg28

己知lg2=0.3010,1g7=0.8451,求lg28的值?
己知lg2=0.3010,1g7=0.8451,求lg28的值?

己知lg2=0.3010,1g7=0.8451,求lg28的值?
lg28=lg4+lg7=2lg2+lg7=0.3010x2+0.8451=1.4471