help please-need help -immediately-very imp!!

Question

help please.

 

classify as arithmetic, geometric, or neither. Finally find an explicit formula (rule for the nth term) for each. Designate the first term with n = 1.

e. 1, 4, 9, 16, 25, 36, ...

Answer 1

(d)

Step 1:

The series

A geometric series is a series with a constant ratio between successive terms.

The series is geometric series.

Common ratio

Formula for the term in geometric series .

Where first term.

Step 2:

For

Apply the exponent formula .

Solution:

term .

Answer 2

(e)

Step 1:

The series

Above series is neither arithmetic nor geometric.

The pattern of the series is square of the numbers.

term of above series is

Step 2:

For

Solution:

term   .