Write the recursive formula for the geometric sequence: a1 = - 2, a2 = 8, a3 = - 32

In the sequence, we are given with - 2, 8, - 32 ... This is a geometric type of sequence with a geometric ratio of 4. a1 is equal to - 2 and r is equal to 4The expression is

a n = a1 * r ^ (n-1) where n is an integer ora n = a1 * (-4) ^ (n-1) we can check or verify this using the given