3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 21:28:39
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3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
=3㏒3²+㏒3∧2.7/(4/15)﹣3
=3㏒3²+㏒3∧81/8-3
=3㏒3²+4-3㏒3²-3
=4-3
=1
3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
=6㏒3-4/15㏒3+2.7㏒3-5^(㏒5为底10为指数)^(-1/3)
=(6-4/15+2.7)㏒3-1/1000
=263/30㏒3-1/1000
希望能帮助到你,这题主要用到对数性质㏒3²=2㏒3
3㏒3²-㏒3∧4/15+㏒3∧2.7﹣5∧㏒5³
=3㏒3²+㏒3∧2.7/(4/15)﹣3
=3㏒3²+㏒3∧81/8-3
=3㏒3²+4-3㏒3²-3
=4-3
=1
所以答案为1