BobTheAskerCanW5227 BobTheAskerCanW5227 15-01-2024 Mathematics contestada A geometric sequence begins with 2, -8, 32, −128, 512, ... Which option below represents the formula for the sequence?a. f(n)=4(-2)ⁿb. f(n)=4(-2)ⁿ⁻¹c. f(n)=2(-4)ⁿ⁻¹d. f(n)=2(-4)ⁿ