Odpowiedź:
a12 = a1+ 11r
12= -32 + 11r / +32
44 = 11r
r= 4
an = a1 + (n-1)r
an= - 32 + 4n - 4
an = 4n - 36
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Odpowiedź:
a12 = a1+ 11r
12= -32 + 11r / +32
44 = 11r
r= 4
an = a1 + (n-1)r
an= - 32 + 4n - 4
an = 4n - 36