SOLUTION: Find an equation for the nth term of a geometric sequence where the second and fifth terms are -21 and 567, respectively
choices below
an = 7 • (-3)n + 1
an = 7 • 3n - 1
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Question 1135564: Find an equation for the nth term of a geometric sequence where the second and fifth terms are -21 and 567, respectively
choices below
an = 7 • (-3)n + 1
an = 7 • 3n - 1
an = 7 • (-3)n - 1
an = 7 • 3n
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
if the second and fifth terms are and , respectively
......solve for
.......eq.1
......solve for
.......eq.2
from eq.1 and eq.2 we have
now find first term
.......eq.1
so, your ormula is:
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