[npl] / trunk / NationalProblemLibrary / ASU-topics / setTrigIdentities / srw7_1_39.pg Repository: Repository Listing bbplugincoursesdistsnplrochestersystemwww

# View of /trunk/NationalProblemLibrary/ASU-topics/setTrigIdentities/srw7_1_39.pg

Thu Aug 17 20:52:06 2006 UTC (6 years, 9 months ago) by jj
File size: 973 byte(s)
Removed duplicate.


    1 ##DESCRIPTION
2 ## Simplify expressions using trigonometric identities
3 ##ENDDESCRIPTION
4
5 ## KEYWORDS('trigonometry')
6 ## Tagged by skm9b
7
8 ## DBsubject('Trigonometry')
9 ## DBchapter('Analytic Trigonometry')
10 ## DBsection('Trigonometric Identities')
11 ## Date('')
12 ## Author('')
13 ## Institution('')
14 ## TitleText1('Precalculus')
15 ## EditionText1('3')
16 ## AuthorText1('Stewart, Redlin, Watson')
17 ## Section1('7.1')
18 ## Problem1('37')
19
20
21 DOCUMENT();        # This should be the first executable line in the problem.
22
24 "PG.pl",
25 "PGbasicmacros.pl",
26 "PGchoicemacros.pl",
32 $showPartialCorrectAnswers = 0; 33 34 35 TEXT(EV2(<<EOT)); 36 Simplify and write the trigonometric expression in terms of sine and cosine: 37 38 $\frac{\sec t -\cos t}{\sec t}= (f(t))^2$ 39 40 $$f(t)=$$ \{ans_rule(10)\}. 41 EOT 42 43$ans1="sin(t)";