/ progresie artimetica1 Se consideră progresia aritmetică cu primul termen «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a1=#a1«/mi»«mo»§#160;«/mo»«/math» şi raţia «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»r=#r«/mi»«/math».

Asociaţi termenilor şi sumelor de mai jos valorile corecte.

]]> 1.0000000 0.3333333 0 true Your answer is correct.

]]> Your answer is partially correct.

]]> Your answer is incorrect.

]]> Termenul al #t-lea este:

]]> #at Suma primilor #t termeni este:

]]> #St Termenul al #k-lea este:

]]> #ak Suma primilor #k termeni este:

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