OpenStax, Algebra and Trigonometry 2e §13.3 Geometric Sequences · Exercise 47 · Probability · Counting & chance

Geometric Sequences · Exercise 47

Find the specified term for the geometric sequence given.

Let $a_{1} = 4,$ $a_{n} = - 3 a_{n - 1} .$ Find $a_{8} .$

Its source prints no answer for this problem, so there's nothing to check against.

~8 minWritten answer · check your work with Lemma

OpenStax, Algebra and Trigonometry 2e · §13.3 Geometric Sequences · Exercise 47

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.