View of /trunk/NationalProblemLibrary/Rochester/setSequences4Arithmetic/ur_sq_4_2.pg

    1 ##DESCRIPTION
    2 ##KEYWORDS('algebra','aritmetic sequences')
    3 ##
    4 ##ENDDESCRIPTION
    5 
    6 DOCUMENT();        # This should be the first executable line in the problem.
    7 
    8 loadMacros(
    9 "PG.pl",
   10 "PGbasicmacros.pl",
   11 "PGchoicemacros.pl",
   12 "PGanswermacros.pl",
   13 "PGgraphmacros.pl"
   14 );
   15 
   16 TEXT(beginproblem());
   17 $showPartialCorrectAnswers = 1;
   18 
   19 $a = random(-10,10,1);
   20 $d = non_zero_random(-5,5,1);
   21 $n = random(4,13,1);
   22 $a2 = $a+$d;
   23 $a3 = $a+2*$d;
   24 $an = $a+($n-1)*$d;
   25 
   26 
   27 BEGIN_TEXT
   28 
   29 Find the \( $n^{th} \) term of the arithmetic sequence
   30 $PAR
   31 \( $a , $a2 , $a3 , ...\)
   32 
   33 
   34 Answer: \{ans_rule(10)\}
   35 
   36 END_TEXT
   37 
   38 ANS(num_cmp($an, mode=>"arith"));
   39 
   40 ENDDOCUMENT();       # This should be the last executable line in the problem.