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# View of /trunk/NationalProblemLibrary/Rochester/setTrig04FunctionsAnyAngle/srw6_3_7.pg

Thu Aug 16 23:07:34 2007 UTC (5 years, 9 months ago) by jj
File size: 1030 byte(s)
Moved problems back into place in the Rochester library, and set up
redirect files from their former locations.


    1 ##DESCRIPTION
2 ## Algebra: Trigonometric functions of angles
3 ##ENDDESCRIPTION
4
5 ##KEYWORDS('algebra', 'trigonometric functions of angles', 'exact value')
6
7 ## tcao , PAID on 11-24-2003
8
9 ## DBsubject('Trigonometry')
10 ## DBchapter('Trigonometric Functions of Angles')
11 ## DBsection('Trigonometric Functions of Angles')
12 ## Date('6/3/2002')
13 ## Author('')
14 ## Institution('')
15 ## TitleText1('Precalculus')
16 ## EditionText1('3')
17 ## AuthorText1('Stewart, Redlin, Watson')
18 ## Section1('6.3')
19 ## Problem1('7')
20 DOCUMENT();        # This should be the first executable line in the problem.
21
23 "PG.pl",
24 "PGbasicmacros.pl",
25 "PGchoicemacros.pl",
27 "PGauxiliaryFunctions.pl"
28 );
29
30 TEXT(beginproblem());
31 $showPartialCorrectAnswers = 0; 32 33 TEXT(EV2(<<EOT)); 34 Find the exact value. 35$BR
36 $$\sin 150^\circ =$$ \{ans_rule(15)\};
37 $BR 38 $$\cos 150^\circ =$$ \{ans_rule(15)\}; 39$BR
40 EOT
41
42 $ans1=1/2; 43$ans2=-sqrt(3)/2;
44 ANS(num_cmp($ans1)); 45 ANS(num_cmp($ans2));
46
47 ENDDOCUMENT();        # This should be the last executable line in the problem.