Find the 12th term of the geometric sequence 2, - 8,32, ...

Question

Mathematics

Damari Hill

20 December, 15:59

Find the 12th term of the geometric sequence 2, - 8,32, ...

+4

Answers (2)

Know the Answer?

Shiloh Henry · Answer 1

Step-by-step explanation:

hello:

the n-ieme term is : An=A1*r^ (n-1)

A1 the first term r : the common ratio

in this exercice : A1 = 2 r = 32/-8=-8/2 = - 4 n = 12

A12=2 * (-4) ^ (12-1) = - 2*4^11 because : ((-4) ^ (11) = - 4^11

Antwan Baird · Answer 2

-8388607

Step-by-step explanation:

a = 2

r = - 8/2 = - 4

12th term = (2) * (-4) ¹¹

= - 8388608