9000063806 | math4u.vsb.cz

SubArea:

Introduction to sequences

Level:

Project ID:

9000063806

Source Problem:

Accepted:

1

Clonable:

1

Easy:

0

Consider the sequence

a_{n + 1} = a_{n} - 2 a_{n - 1}

with

a_{3} = 0

and

a_{4} = - 16

. Find

a_{2} - a_{1}

.

4

16

- 4

8