Recent content by Madonna M.

Hey, I would like to know if there are any steps to follow to get a formula or a rule for a sequence, or does it depend on logic and practicing ?? Thanks :)

Ahaa i got it thanks a lot,i think it would be 2^(2^(n-1))

well,do you mean that every time am going to multiply the power of the previous term by 2 to get the next one?

could you give me more clear clue please?? :)

1. Homework Statement Provide a simple formula or rule that generates the terms of an integer sequence that begins with : * 2,4,16,256,65536,... 3. The Attempt at a Solution I have tried a lot to solve it but i ended up with nothing,although i know that finding a term in the...

1. Homework Statement How many elements does this set have? * P(P(∅)) 2. Homework Equations I know that if a set has n elements, then its power set has 2^n elements but i really want to know if (P(∅)) is just one element or not. Thanks in advance..

How many elements does each of these sets have where a and b are distinct elements? (with steps please) a) P({a,b{a,b}})b)P({∅,a,{a},{{a}}}) c)P(P(∅)) *i have tried to solve them but i am a little bit confused... Thanks in advance :)