Page 105 - Calculus for the Clueless, Calc II
P. 105
Here are some more.
Finally there are theorems found in many books that give the conditions under which you can add, subtract,
multiply, divide, differentiate, and integrate infinite series. We can amaze ourselves by the number of functions
we can approximate.
Example 41—
Find the infinite series for cosh x.
Substitute -x for x.
Add and divide by 2.
Pretty neat, eh?! More to come.
Example 42—
dx, four terms: