Question

What are the first five terms of the sequence a(subn)=n

Answer 1

\[a_n = n\]

well if we start with n =1

\[a_1 = 1\]
\[a_2 = 2\]

etc

Answer 2

Oh thats easy haha.. Thx.. How would you do a(subn)=2n?

Answer 3

2,4,6,8,10?

Answer 4

yep :)

just substitute in the value of n

Answer 5

oh ok haha.. thx.. just one more because they get tougher.. a(subn)=4n/3

Answer 6

ok, so lets start with n = 1

\[a_1 = \frac{4(1)}{3} = \frac{4}{3}\]

can you do n = 2 ?

Answer 7

8/3?

Answer 8

yep :D

Answer 9

thats easy, u taught it soooo much better than my teacher haha.. Thanks!

Answer 10

so we have
4/3, 8/3 , 12/3 , 16/3, 20/3

no problem!

be careful though, some people like to start with n = 0

usually a problem will say what it wants you to start with, it will be specific :)

Answer 11

ok sounds good.. have a good night :)

Answer 12

you two