Only need 4,5,6 will mark as brainlist

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

If sin(x) = 0 and cos(x) = 1, what is tan(x)?