Question 627027
a2 = r*a1


30 = r*(-6)


30/(-6) = r


-5 = r


r = -5


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General term:


{{{a[n] = a[1]*r^(n-1)}}}


{{{a[n] = -6*r^(n-1)}}}


{{{a[n] = -6*(-5)^(n-1)}}}