Wyznacz wszystkie ujemne wyrazy ciągu (an) jeśli:
a) an= 2n-8
an=2n-8
a1=2*1-8
a1=2-8
a1=-6
a2=2*2-8
a2=4-8
a2=-4
a3=2*3-8
a3=6-8
a3=-2
ujemne wyrazy ciagu an to a1,a2,a3
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an=2n-8
a1=2*1-8
a1=2-8
a1=-6
a2=2*2-8
a2=4-8
a2=-4
a3=2*3-8
a3=6-8
a3=-2
ujemne wyrazy ciagu an to a1,a2,a3