人教A版(2019)必修第一冊(cè)《4.3 對(duì)數(shù)》2023年同步練習(xí)卷(5)
發(fā)布:2024/8/15 9:0:1
解答題
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1.將下列指數(shù)式化為對(duì)數(shù)式,對(duì)數(shù)式化為指數(shù)式:
(1)2-7=;1128
(2)3a=27;
(3)10-1=0.1;
(4)lo32=-5;g12
(5)lg0.001=-3.組卷:53引用:1難度:0.9 -
2.把下列對(duì)數(shù)式寫成指數(shù)式:
(1)log39=2; (2)log5125=3;
(3)log2=-2; (4)log314=-4.181組卷:611引用:3難度:0.5 -
3.求下列各式的值:
(1)log525;
(2)log0.41;
(3)ln;1e
(4)lg0.001.組卷:88引用:3難度:0.9 -
4.求下列各式中x的值:
(1)log749=x;
(2)log0.130.13=x;
(3)log20111=x;
(4)3=x.log3組卷:39引用:1難度:0.9 -
5.求下列各式的值:
(1)lg;5100
(2)log2(47×25).組卷:65引用:3難度:0.9
解答題
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15.已知a+b=lg22+lg25+2lg2lg5,求a+b.
組卷:17引用:1難度:0.7 -
16.計(jì)算下列各式.
(1)+(0.0014(3-2)4-(0.25)-13×()12)-4;12
(2)2(lg)2+lg2?lg5+2.(lg2)2-lg2+1組卷:113引用:2難度:0.7