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a1=6 r=(-2) a2, a3, a4, a5=?

Răspuns :

[tex]a_{1} = 6[/tex]

[tex]r = - 2[/tex]

[tex]a_{2} = a_{1} + r = 6 + ( - 2) = 6 - 2 = 4[/tex]

[tex]a_{3} = a_{2} + r = 4 + ( - 2) = 4 - 2 = 2[/tex]

[tex]a_{4} = a_{3} + r = 2 + ( - 2) = 2 - 2 = 0[/tex]

[tex]a_{5} = a_{4} + r = 0 + ( - 2) = 0 - 2 = - 2[/tex]