4 years ago

Determine 8th term in the

Mathematics

1 answer:

Dmitry_Shevchenko [17]4 years ago

3 0

Answer:

- 1280

Step-by-step explanation:

The n th term of a geometric sequence is

$a_{n}$ = a₁ $(r)^{n-1}$

here a₁ = - 10 and r = 2, hence

$a_{8}$ = - 10 × $2^{7}$ = - 10 × 128 = - 1280

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