Annotation of loncom/homework/templates/HintFormula.problem, revision 1.1
1.1 ! www 1: <problem>
! 2: <script type="loncapa/perl">
! 3: $a1=&random(3,6,1);
! 4: $e1=&random(3,6,1);
! 5: $a2=&random(6,8,1);
! 6: $e2=&random(6,8,1);
! 7: $da1=$a1*$e1;
! 8: $da2=$a2*$e2;
! 9: $de1=$e1-1;
! 10: $de2=$e2-1;
! 11: @derivative=($da1.'t^'.$de1,$da2.'t^'.$de2);
! 12: @wrongderivative=($a1.'t^'.$de1,$a2.'t^'.$de2);
! 13: </script>
! 14: <startouttext />What is the derivative of
! 15: <m eval="on">\[\left(\begin{array}{c}$a1 t^$e1\\ $a2 t^$e2\end{array}\right)\]</m>
! 16: with respect to <m>$t$</m>?<endouttext />
! 17: <formularesponse answer="@derivative">
! 18: <textline readonly="no" size="25" />
! 19: <hintgroup showoncorrect="no">
! 20: <formulahint answer="@wrongderivative" name="nomulti"></formulahint>
! 21: <hintpart on="nomulti">
! 22: <startouttext />You need to multiply with the original exponent.<endouttext />
! 23: </hintpart>
! 24: </hintgroup>
! 25: </formularesponse>
! 26: </problem>
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