Please, this is one part then I give you the second part

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4

The graph of a curve that passes the vertical line test is a: