Question

Write the first 5 terms for this sequence:

Answer 1

Answer:

3, -6, 12, -24, 48

Step-by-step explanation:

Given:

• $a_1=3$
• $a_{n+1}=-2 \cdot a_n$

Therefore,

$a_1=3$

$a_2=-2 \cdot a_1=-2 \cdot 3=-6$

$a_3=-2 \cdot a_2=-2 \cdot -6=12$

$a_4=-2 \cdot a_3=-2 \cdot 12=-24$

$a_5=-2 \cdot a_4=-2 \cdot -24=48$