国考1号8·第8套·2024届高三阶段性考试(五)数学考试卷

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国考1号8·第8套·2024届高三阶段性考试(五)数学考试卷试卷答案

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atthefrontfromgettingtootired.Thisgroupingtogetherdoesn'tjusthappenduringmigration.Theycanalsogotogetheringroupswhentakingarestorfindinggoodfood.Thecommoncraneisanomnivoreandcanfeedonlandorwatermostlythankstoitsspecialbeak()Theymainlyeatplants,suchasroots,fruitsorseeds,andsmallanimals,suchasworms,insects,orspiders.Thelatterformpartoftheirdiet.ThecommoncraneisalargemigratorybirdthatspendsitslifetravelingbetweenEurasiaandAfrica.It'sparticularlyfoundinGreece,Germany,Vietnam,Thailand,andSudan.Itisknownasagreattraveler.Inasingleyear,theycanflythou-sandsofmiles.Theyprefersnowforests,orthecolderareas.Theylookforquietenvironmentsandavoidmeetingwithpeople,althoughit'spossibletoseethemincropfields.

分析(1)利用表达式的解法,求解即可.
(2)利用原来砸门的运算法则化简求解即可.
(3)利用对数运算法则化简求解即可.

解答解:(1)2x-4<0;可得x<2.
(2)2$\sqrt{2}$•3$\sqrt{{2}^{2}}$=${2}^{1+\frac{1}{2}+\frac{2}{3}}$=${2}^{\frac{13}{6}}$;
(3)lg2+lg5=lg10=1.

点评本题考查表达式的解法,有理指数幂的运算法则以及对数运算法则的应用,考查计算能力.