log以2为底4的对数 2 log以2为底5的对数 2.3219280948873623478703194294894 log以2为底6的对数 2.5849625007211561814537389439478 log以2为底7的对数 2.8073549220576041074419693172318 log以2为底8的对数3 log以2为底9的对数 3.1699250014423123629074778878956 log以2为底10的对数 3.3219280948873623478703194294894 log以2为底11...
计算 以 2 为底数 18 的对数 log2(18)log2(18) 如果aa和bb都大于00且不等于11,并且xx大于00,则可使用换底公式。 loga(x)=logb(x)logb(a)loga(x)=logb(x)logb(a) 使用b=10b=10将变量的值代入基本公式变换中。 log(18)log(2)log(18)log(2)...
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HOME NEWS ARTICLES SKATEHERE TV 專業測評 網上商城 HOME > NEWS10_18_11dgkblog2Post By: wolfhowl @ 十 20, 2011Share to: COMMENTSSKATEHERE TV SIGN IN FEATURES FOCUS © 2000-2020 SkateHere.Com All Rights Reserved. 沪ICP备05000133号 SITE DESIGN BY SKATEHERE.COM...
综上所述,结论是:(log)_(18)10= 1 (a+2b) (2)由题意可得(log)_572= (lg72) (lg5)= (lg ( (2^3* 3^2) )) (lg (10) 2)= (3lg2+2lg3) (1-lg2)= (3a+2b) (1-a) 综上所述,结论是:(log)_572= (3a+2b) (1-a)结果...
(18) 5. (19) 2−a (20) 1a+b (1) 略 (2) 略 (3) 略 (4) 略 (5) 略 (6) 略 (7) 略 (8) 略 (9) 略 (10) 略 (11) 略 (12) 略 (13) 2log510+log50.25+log21+log33=2+0+1=3. (14) lg5+lg2lg5+(lg2)2=lg2⋅(lg2+lg5)+1g5=1. (15) lg500+lg85−...
三、解答题9.设 a=log_(10)2 , b=log_(10)3 ,试用a,b表示 log_(10)10 818log_(10)(18)/(25) 答案 9.解 log_(10)108=log_(10)(4*27)=log_(10)4+log_(10)27=2log_(10)2+3log_(10)3 =2a+3b.log_(10)(18)/(25)=log_(10)(18*4)-log_(10)(25*4) =log_(10)...
10. Analyze raise exception line: If the code explicitly raise an exception, in most cases, the variables on the line are substituted and printed out at the end of traceback. With logger-tt analyzing the raise statement, these variables are printed again too. [2021-06-19 18:15:01] ERROR...
(3)log6-2log63+log627 (4)log2(+2)+log2(2-);相关知识点: 试题来源: 解析 18、(1)2log210+log20.04=log2(100×0.04)=log24=2 (2)===1 (3)log6-2log63+log627=log6-log69+log63 =log6(××3)=log6=-2. (4)log2(+2)+log2(2-) =log2(2+)(2-)=log21=0....
log2 6+log2 3 log2 18 =log2 (2*9)=log2 2+log2 3^2=1+2log2 3 lg5+lg2 =lg5*2 =lg10 =1 log5 3+ log5 (1/3)=l0g5 3-log5 3 =0 log3 5- log3 15 =log3 (5/15)=log3 (1/3)=-log3 3 =-1.