13th term of the geometric sequence is 732,421,875
Give that;
Geometric sequence 3, -15, 75,
Find:
13th term of the geometric sequence
Computation:
First term a = 3
Common ratio r = a2 / a1 = -15 / 3 = -5
Number of term n = 13
An = arⁿ⁻¹
A13 = (3)(-5)¹³⁻¹
A13 = (3)(-5)¹²
A13 = (3)(244,140,625)
A13 = 732,421,875
13th term of the geometric sequence = 732,421,875
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