Question

find the nth term and 12th term of the sequence 2i, -6i , 18i,-54i....​

Answer 1

Answer:

In AP, is (i) represent iota?

or just an algebra term?

Step-by-step explanation:

OK OK , it's iota

GP= 2, 720....

Terms... Tn= ar^(n-1)

a=2, r= (720/2) or (6¡÷2¡) = 360

Tn= 2 × 360^ (n-1) = 720^(n-1)

and,

T12 = ar^(n-1)

T12 = 2 × 360^(12-1)

T12 = 2 × 360^(11)