Answer:
hello : A6 =3072
Step-by-step explanation:
note : the nth term is : An =A1 × r^(n-1)
A1 = - 3 and r = 12/-3 =- 48/12 = - 4
An =(-3) × (-4)^(n-1)
you have : An = 3072 calculate : n
(-3) × (-4)^(n-1) = 3072
(-4)^(n-1) = - 1024
but : - 1024 = ( - 4 )^5
so ; (-4)^(n-1) = ( - 4 )^5
n - 1 = 5
n = 6 A6 =3072
