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# Core 1 Maths HELP Sequences watch

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1. Give an inductive definition that would produce each of the following sequences.
a) 5, 9, 13, 17, 21 ...
b) 1, 3, 9, 27, 81 ...
c) 62, 44, 26, 8, -10 ...
2. (Original post by sandy16)
Give an inductive definition that would produce each of the following sequences.
a) 5, 9, 13, 17, 21 ...
b) 1, 3, 9, 27, 81 ...
c) 62, 44, 26, 8, -10 ...
What are your thoughts for any of the parts?

What two things will you need for an inductive definition of a sequence?
3. (Original post by SeanFM)
What are your thoughts for any of the parts?

What two things will you need for an inductive definition of a sequence?
The First Term and Common difference?
4. (Original post by sandy16)
The First Term and Common difference?
Correct

5. (Original post by SeanFM)
Correct

Do you write out the sequences in the form Un+1= and then write the first term?
6. (Original post by sandy16)
Do you write out the sequences in the form Un+1= and then write the first term?
You write the next term in terms of the previous term, so Un+1 = f(Un) where f(Un) is what you do to Un to get to Un+1.
7. (Original post by SeanFM)
You write the next term in terms of the previous term, so Un+1 = f(Un) where f(Un) is what you do to Un to get to Un+1.
Oh ok Thank You

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Updated: October 18, 2015
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