[npl] / trunk / NationalProblemLibrary / WHFreeman / Rogawski_Calculus_Early_Transcendentals_Second_Edition / 12_Vector_Geometry / 12.6_A_Survey_of_Quadric_Surfaces / 12.6.35.pg Repository: Repository Listing bbplugincoursesdistsnplrochestersystemwww

Tue Nov 8 15:17:41 2011 UTC (19 months, 1 week ago) by aubreyja
File size: 1780 byte(s)
`Rogawski problems contributed by publisher WHFreeman. These are a subset of the problems available to instructors who use the Rogawski textbook. The remainder can be obtained from the publisher.`

```    1 ## DBsubject('Calculus')
2 ## DBchapter('Vector Geometry')
3 ## DBsection('A Survey of Quadratic Surfaces')
4 ## KEYWORDS('calculus')
5 ## TitleText1('Calculus: Early Transcendentals')
6 ## EditionText1('2')
7 ## AuthorText1('Rogawski')
8 ## Section1('12.6')
9 ## Problem1('35')
11 ## Institution('W.H.Freeman')
12
13 DOCUMENT();
14
21
22 TEXT(beginproblem());
23
24 \$cyltype=random(1,2);
25 if(\$cyltype==1){\$cyltype='elliptic';}
26 if(\$cyltype==2){\$cyltype='parabolic';}
27
28 Context()->texStrings;
29 \$tf = new_select_list();
30 \$tf -> qa (
31 "The vertical traces of \$cyltype cylinders in standard form, are either one or two vertical lines or an empty set",
32 "T",
33 "The vertical traces of \$cyltype cylinders in standard form, are either one or two vertical lines",
34 "F",
35 "The vertical traces of \$cyltype cylinders in standard form, are either one vertical line or an empty set",
36 "F",
37 "The vertical traces of \$cyltype cylinders in standard form, must be an empty set",
38 "F",);
39 \$tf ->choose(1);
40
41
42 BEGIN_TEXT
43 \{ textbook_ref_exact("Rogawski ET 2e", "12.6","35") \}
44 \$PAR
45 \{ \$tf-> print_q \}
46 \$BR
47 Enter T or F depending on whether the statement is true or false.
48 (You must enter T or F -- True and False will not work.)\$BR
49
50 \$PAR
51
52 \$PAR
53 END_TEXT
54
55 Context()->normalStrings;
56
57 ANS(str_cmp(\$tf->ra_correct_ans));
58
59 Context()->texStrings;
60 SOLUTION(EV3(<<'END_SOLUTION'));
61 \$PAR
62 \$SOL
63 \$BR
64 The vertical traces of \$cyltype cylinders are either one or two vertical lines or an empty set
65
66 \$BR
67 END_SOLUTION
68
69 ENDDOCUMENT();
```