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Wed Jun 28 22:52:53 2006 UTC (6 years, 10 months ago) by jj
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Fixed some tags.


    1 #DESCRIPTION
2 ##  Algebra problem: Exponential and logarithmic equations
3 ##ENDDESCRIPTION
4
5 ##KEYWORDS('algebra', 'logarithmic equation')
6
7 ## tcao , PAID on 11-24-2003
8
9 ## DBsubject('Algebra')
10 ## DBchapter('Exponential and Logarithmic Functions')
11 ## DBsection('Exponential and Logarithmic Equations')
12 ## Date('6/3/2002')
13 ## Author('')
14 ## Institution('')
15 ## TitleText1('Precalculus')
16 ## EditionText1('3')
17 ## AuthorText1('Stewart, Redlin, Watson')
18 ## Section1('4.5')
19 ## Problem1('33')
20 DOCUMENT();        # This should be the first executable line in the problem.
21
22 loadMacros(
23 "PG.pl",
24 "PGbasicmacros.pl",
25 "PGchoicemacros.pl",
26 "PGanswermacros.pl",
27 "PGauxiliaryFunctions.pl"
28 );
29
30 TEXT(beginproblem());
31 $showPartialCorrectAnswers = 1; 32 33$a=non_zero_random(-5,10,1);
34 $b=random(2,20,1); 35 36 BEGIN_TEXT 37 Find the solution of the logarithmic equation 38 $39 \ln x=a 40$ 41 in terms of logarithms, or correct to four decimal places. 42$BR
43 Your answer is
44 $BR 45 $$x=$$ \{ans_rule(25) \} 46$BR
47 END_TEXT
48
49 $ans1 = exp($a);
50
51 ANS(num_cmp(\$ans1));
52
53 ENDDOCUMENT();        # This should be the last executable line in the problem.


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