Q1Chapter 2.1MediumMark for reviewABCAP PrecalculusThe first four terms of a sequence are 6, 18, 54, 1626,\ 18,\ 54,\ 1626, 18, 54, 162. Which formula gives the nnnth term, with a1=6a_1=6a1=6?Aan=6⋅3 n−1a_n=6\cdot 3^{\,n-1}an=6⋅3n−1Ban=6⋅3 na_n=6\cdot 3^{\,n}an=6⋅3nCan=6+12(n−1)a_n=6+12(n-1)an=6+12(n−1)Dan=2⋅3 n+1a_n=2\cdot 3^{\,n+1}an=2⋅3n+1Check answer