Question

PLzz help easy math...............

Answer 1

Good evening ,

Answer:

A. 2n-1

Step-by-step explanation:

It’s an arithmetic series

with first term 1

Un = U₁ + r×(n-1)

     = 1 + 2× (n-1)

     = 1 + 2n -2

     = 2n - 1.

:)

Answer 2

Answer:

A. 2n-1

Step-by-step explanation: