Question

Find the first six terms of the sequence. a1 = -3, an = 2 ● an-1

Answer 1

\[a_1=-3 ~~~~~and~~~~~~~~a_n=2*a_{n-1} \\right?\]

Answer 2

first try putting n=2 in\[a_n=2*a_{n-1}\]
so u'll have
\[a_2=2*a_{2-1}=2*a_1=2*(-3)=-6\]
now put n=3 then \[a_3=2*a_{3-1}=1*a_2=2*(-6)=-12\]
after that try
n=4 , then n=5 and u'll get the answer