Hey there! Sign in to join this conversationNew here? Join for free
    • Community Assistant
    Offline

    20
    ReputationRep:
    Community Assistant
    (Original post by UKBrah)
    I think Ive clocked onto something..
    So if I consider the sequence formed by the left of the product of the terms it forms a sequence 1,3,5 etc and same for the right, 2,4,6,8 etc.
    The nth term for both of those is (2n-1) and 2n respectively, so can I multiply them together to form (2n-1)2n? It works! :cool:
    Good.
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by Mr M)
    Good.
    How would one find the general term of a sequence like (3 x 9), (7 x 21), (11 x 34) etc.. is it even possible?

    thanks for helping me btw
    • Community Assistant
    Offline

    20
    ReputationRep:
    Community Assistant
    (Original post by UKBrah)
    How would one find the general term of a sequence like (3 x 9), (7 x 21), (11 x 34) etc.. is it even possible?

    thanks for helping me btw
    Did you mean (3 x 9), (7 x 21) (11 x 33) as this is easy?

    Or were you just typing random numbers?
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by Mr M)
    Did you mean (3 x 9), (7 x 21) (11 x 33) as this is easy?

    Or were you just typing random numbers?
    Yeah I wrote random numbers, is it possible to find an rth term for a sequence like that. Since I lack the intuition to see the rth term, I would have to use the method I used above.
    • Community Assistant
    Offline

    20
    ReputationRep:
    Community Assistant
    (Original post by UKBrah)
    Yeah I wrote random numbers, is it possible to find an rth term for a sequence like that. Since I lack the intuition to see the rth term, I would have to use the method I used above.
    There isn't a general rule for random numbers!

    In general you can look for a pattern in the first numbers and a different pattern in the second numbers. In the modified version I gave you both sets of numbers form arithmetic sequences.
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by Mr M)
    There isn't a general rule for random numbers!

    In general you can look for a pattern in the first numbers and a different pattern in the second numbers. In the modified version I gave you both sets of numbers form arithmetic sequences.
    Thanks dude I find that so cool.
    The product of the nth term of the sequence of the left and right of the product is the nth term of the original sequence
    Offline

    0
    ReputationRep:
    Yep
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    What's your favourite Christmas sweets?
    Useful resources

    Make your revision easier

    Maths

    Maths Forum posting guidelines

    Not sure where to post? Read the updated guidelines here

    Equations

    How to use LaTex

    Writing equations the easy way

    Student revising

    Study habits of A* students

    Top tips from students who have already aced their exams

    Study Planner

    Create your own Study Planner

    Never miss a deadline again

    Polling station sign

    Thinking about a maths degree?

    Chat with other maths applicants

    Can you help? Study help unanswered threads

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.