Question

What is the third term of the sequence? a1 = m an = 2an-1

Answer 1

Answer: Our third term is 4m.

Step-by-step explanation:

Since we have given that

$a_1=m\\\\a_n=2a_{n-1}$

We need to find the third term i.e. $a_3$

According to general recursive terms:

$a_3=2a_2$

So, we first find the second term:

$a_2=2a_1\\\\a_2=2m$

so, our third term becomes,

$a_3=2a_2\\\\a_3=2\times 2m\\\\a_3=4m$

Hence, our third term is 4m.

Answer 2

Hello :
if n = 3
a3 =2a2
a2 = 2m
a3 =4m