• 5.2.4 Rules ⪢⪢
Sum rule. If f and g are continuous at c then f+g is continuous at c.┆Product rule. If f and g are continuous at c then f·g is continuous at c.┆Reciprocal rule. If f is continuous at c and f(c) is not 0 then 1/f is continuous at c.
http://qindex.info/i.php?x=5158
