Question

Which of the following are explicit equations for the nth term of some kind of arithmetic sequence? a) Pn=p1+(n-1)p1 b) an=an-1+d c) xn=x1(n-1) d) xn=xn-1+vt e) pn=pn-1+ip1

Answer 1

hard to read the options; but if I recall correctly, A{n} = A{0} +dn

Answer 2

b looks to be the correct setup; but id have to review the difference between the formula for finding the nth term; and the recursive equation that defines it

Answer 3

it said to check all that apply its more then one answer

Answer 4

http://www.mathwords.com/e/explicit_formula.htm

Answer 5

\[a _{n}= a _{1}+(n-1)d\]Did I get it Right?

Answer 6

that looks to be good, but I think that is defined as the recursive equation; .... it appears that different authors use different terms to express these things tho

Answer 7

b is the only one that looks right to me, and even that is iffy

Answer 8

noo it wus a & c

Answer 9

c appears to be geometric as opposed to arithematicish

Answer 10

Yea C is not the answer though a can be if d(cmmon diif. bw consecutive terms) is equal to p1(the first term itself)

Answer 11

a) p{n}=p{1} +(n-1)p{1} <-- this one I can see as possible

b) a{n}=a{n-1}+d <-- this one is plausible

c) x{n}=x{1} (n-1) ..... geometric if anything

d) x{n}=x{n-1} +vt <-- this one maybe

e) p{n} =p{n-1} +i p{1} .... got no idea