In the problem The Cantor Set, we met the Cantor set, which is the limit of Cn as n tends to infinity.


C_1, C_2, C_3



We can talk about the length of one of our sets Cn .
The set C1 has length 1.
The set C2 has length 2 3 , as this is the total length of the line segments in C2 .

What are the lengths of C3 , C4 and C5 ?

Can you find a general expression for the length of Cn ?

By considering what happens as n tends to infinity, can you find the length of the Cantor set?