the sum of the recipical of the products of fibonacci number

[Salvadoramerican]

[unparseable or potentially dangerous latex formula] and [unparseable or potentially dangerous latex formula] how would you find the limit or where they converge or diverge accurately?

what does it mean by distinct answer or solutions for some questions

[nsguy1350]

I'm not sure. I think I remember seeing the reciprocal Fibonacci constant somewhere, but I don't think that's going to be on the UIL test.
By the way, at the start of your LaTeX, put "\displaystyle" to make the sums look better. Also, did you mean [unparseable or potentially dangerous latex formula]?
If you mean the second one, use the underscore along with braces enclosing the entire subscript.

[Salvadoramerican]

thanks for the tip

[nsguy1350]

Could you post an example, strictly with the actual numbers? I don't know any shortcut or formula for these problems, off the top of my head.

[Salvadoramerican]

[unparseable or potentially dangerous latex formula] i just reduce it to eliminate the subtractions