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# C1 Sequences watch

1. Stuck on two questions, I'm looking for the full working out so I can work out for myself how it's done, I can do all the others but rearranging the ones divided by something I just can't do.....

2d) I know n = 9 from the book but I don't know how to rearrange it properly as I get all sorts

2h) I know n = 14 from the book but same as above

Thanks a lot

This is how my working seems to be going....

2d)
So I try to multiply by n - 3? then from there I get the answer - 21 over 4 obviously nothing like the answer 9
2. (Original post by popppyss)
Stuck on two questions, I'm looking for the full working out so I can work out for myself how it's done, I can do all the others but rearranging the ones divided by something I just can't do.....

2d) I know n = 9 from the book but I don't know how to rearrange it properly as I get all sorts

2h) I know n = 14 from the book but same as above

Thanks a lot

This is how my working seems to be going....

2d)
So I try to multiply by n - 3? then from there I get the answer - 21 over 4 obviously nothing like the answer 9
THere maybe some problem with your multiplying, because if you do it
properly then you will get for n 63 over 7.
2b )Ignore (-1)^n. It is only alternatively changing the sign of the terms
but this not effect the value of terms.
THen solve the equation to n.

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