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

Question

anonymous · Answer

$$a_n = n$$

well if we start with n =1

$$a_1 = 1$$
$$a_2 = 2$$

etc

anonymous · Answer

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

anonymous · Answer

2,4,6,8,10?

anonymous · Answer

yep :)

just substitute in the value of n

anonymous · Answer

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

anonymous · Answer

ok, so lets start with n = 1

$$a_1 = \frac{4(1)}{3} = \frac{4}{3}$$

can you do n = 2 ?

anonymous · Answer

8/3?

anonymous · Answer

yep :D

anonymous · Answer

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

anonymous · Answer

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 :)

anonymous · Answer

ok sounds good.. have a good night :)

anonymous · Answer

you two