# Can't think of 2 examples

1. Mar 29, 2005

### semidevil

I"m trying to think of 2 functions that are discontinuous at point C, but when added togther, and multiplied togther, will be continuous at point c.

I tried 1/x, root(x), a polynomail w/ x-1 in the denomiator....cant think of anything....any hints?

I mean, when you multiply 2 functions to get a new function, can't you factor that function back to the original function, and it will be discontinuous again?

2. Mar 29, 2005

### Data

Think quite a bit simpler. Hint: Try two functions that are "almost constant," ie. they are constant except at $C$ where they are both discontinuous.

Don't forget that defining functions piecewise is perfectly allowable.