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Right, mathematics can be somewhat complicated ... but upvoting isn't. :)

It's so easy to upvote.
I just clicked on the upward button and voila! :)
It's simple also to upvote a comment right? ;)

Sure, in general I upvote all comments, provided that the author has done the same with my article ... :)
(High upvotes are reserved for the ones who contribute to the solution of this mathematical problem, though.)

Indeed! It's easy as 1,2, 3! ;)
More power to you @jaki01. I'm sure a math whiz will drop by and help you solve it. ^u^