What is the sum of the series
410+4⋅710⋅20+4⋅7⋅1010⋅20⋅30+⋯?
I know how to check if a series is convergent or not.Is there any technique to find out the sum of a series like this where each term increases by a pattern?
I have injection f:A→B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...
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