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    (Original post by Jasminechen)
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    Think about what simultaneous equations you could form.
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    (Original post by SeanFM)
    Think about what simultaneous equations you could form.
    Do I add the first four terms together to get the first expression?
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    (Original post by Jasminechen)
    Do I add the first four terms together to get the first expression?
    the difference between consecutive terms is constant.
    hence find the difference between 2 pairs of consecutive values and equate .. now do it again and solve the simultaneous eqns.
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    (Original post by Jasminechen)
    Do I add the first four terms together to get the first expression?
    I was thinking more like you know that the difference between the nth term and the (n+1)th term (eg 2nd and 3rd term) is d, so if you find two equations for that...
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    (Original post by SeanFM)
    I was thinking more like you know that the difference between the nth term and the (n+1)th term (eg 2nd and 3rd term) is d, so if you find two equations for that...
    Okay thanks 😀
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    (Original post by Jasminechen)
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    Hi Jasmine,

    That is quite tricky!

    Attached is a step by step guide of how to solve the problem.

    Hope this helps.

    Cheers,
    James & TutorTap Team
    Attached Images
  1. File Type: pdf 0540_001.pdf (33.6 KB, 50 views)
 
 
 
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