A geometric sequence is defined recursively as a1=23, an+1=an×12
What is the explicit formula for the sequence? (1 point)
Responses
an=12×(23)n−1
A sub n is equal to 1 half times 2 thirds raised to the n minus 1 power
an=12+23(n−1)
A sub n is equal to 1 half plus 2 thirds times open paren n minus 1 close paren
an=23+12(n−1)
A sub n is equal to 2 thirds plus 1 half times open paren n minus 1 close paren
an=23×(12)n−1