".$variable."";
$a = chooseSign()*chooseNumber($max);
$b = chooseSign()*chooseNumber($max);
$c = chooseSign()*chooseNumber($max);
$d = chooseSign()*chooseNumber($max);
$e = chooseSign()*chooseNumber($max);
$f = chooseSign()*chooseNumber($max);
$g = chooseSign()*chooseNumber($max);
$choice = chooseNumber(5);
switch($choice)
{
case 1:
$inside = "sin(".$varHere.")";
break;
case 2:
$inside = "cos(".$varHere.")";
break;
case 3:
$inside = "tan(".$varHere.")";
break;
case 4:
$inside = $varHere."".$a."";
break;
case 5:
$inside = $b.$varHere."".$a."";
break;
} //end switch
$choice = chooseNumber(5);
switch($choice)
{
case 1:
$outside = "sin[".$inside."]";
break;
case 2:
$outside = "cos[".$inside."]";
break;
case 3:
$outside = "tan[".$inside."]";
break;
case 4:
$outside = "[".$inside."]".$c."";
break;
case 5:
$outside = "[".$c.$inside."]".$d."";
break;
} //end switch
echo $outside;
} //end createChainRuleExpression()
do_html_header("Chain Rule","Find the derivative.");
echo "";
for($i=1;$i<=30;)
{
?>
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.
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1.
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2.
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";
do_html_footer();
?>