I think I must be misunderstanding what you're saying. Either that or I did the math wrong multiple times.
Would you mind clarifying what exactly you mean? Thanks.
This is just a problem I came across while reviewing basic calculus.
Homework Statement
Find the limit as x approaches 0 of f(x)=(1/(x(x+1)^1/2)) - (1/x)
Homework Equations
The Attempt at a Solution
My problem here is really more of an algebra problem than a calculus problem...
Yes, but it doesn't take you an hour to tell the one person.
You tell 1 person.
He tells 3 people (1 hour gone)
They tell 9 people (2 hours gone)
They tell 27 (3 hours gone)
81 (4 hours)
243 (5 hours)
729 (6 hours)
2187 (7 hours)
It should be: 1+3+9+27+81+243+729+2187