Question

Identify the 10th term of a geometric sequence 2,8,32

Answer 1

Answer:

Step-by-step explanation:

Givens

a = 2

r = 4

n = 10

tn = ??

Formula

tn = ar^(n - 1)

Solution

t_10 = 2 * 4^(10 - 1)

t_10 = 2 * 4^9

t_10 = 524288

Answer 2

Answer:

524288

Step-by-step explanation:

1st number a=2

basic ratio r =8/2=4

n=10

we know,

so,10th term =a.(r)^10-1              [formula is a.r^(n-1) ]

                        =2 . (4)^9

                         =2. 262144

                          =524288    

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