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# View of /trunk/NationalProblemLibrary/ASU-topics/setTrigIdentities/srw7_1_7.pg

Wed Aug 15 17:39:45 2007 UTC (5 years, 10 months ago) by jj
File size: 1129 byte(s)
Fixed some textbook tags, and a textbook entry.


    1 ##DESCRIPTION
2 ## Precalculus, Trigonometric Identities
3 ##ENDDESCRIPTION
4
5 ## KEYWORDS('precalculus','trigonometry','identities')
6 ## Tagged by skm9b
7
8 ## DBsubject('Trigonometry')
9 ## DBchapter('Analytic Trigonometry')
10 ## DBsection('Trigonometric Identities')
11 ## Date('5/26/2005')
12 ## Author('Jeff Holt')
13 ## Institution('UVA')
14 ## TitleText1('Calculus: Early Transcendentals')
15 ## EditionText1('5')
16 ## AuthorText1('Stewart')
17 ## Section1('21')
18 ## Problem1(' ')
19
20 ## TitleText2('Calculus: Early Transcendentals')
21 ## EditionText2('6')
22 ## AuthorText2('Stewart')
23 ## Section2('21')
24 ## Problem2('')
25
26 DOCUMENT();        # This should be the first executable line in the problem.
27
29 "PG.pl",
30 "PGbasicmacros.pl",
31 "PGchoicemacros.pl",
37 $showPartialCorrectAnswers = 0; 38 39 40 TEXT(EV2(<<EOT)); 41 Simplify and write the trigonometric expression in terms of sine and cosine: 42 43 $\sin x + \cot x \cos x =\frac{1}{f(x)}$ 44 45 $$f(x)=$$ \{ans_rule(10)\}. 46$BR
49 $ans1="sin(x)"; 50 51 ANS(fun_cmp($ans1));