Question

Please help ASAP please

Answer 1

a(sub n)=a(sub n-1)÷4 when n≥2

Explanation:

a(sub n)=a(sub n-1)÷4 when n≥2 (the second term)

sorry - my iPad doesn’t let me do subscript. You just have to write an n and n-1 in the lower subscript position after a