Bryan Chong's answer to LockB's Secondary 4 A Maths Singapore question.
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Cont'd from my answer
Part (c) is just finding the pattern that is consistent in all the terms. Takes a little creativity, else it shouldn't pose problems.
(d) try to solve this part even if u can't do any of the other parts, as the expression required has already been given by the qn in (c), where they asked u to *show* the expression. With the expression, it becomes a simple matter of subbing in values.
(e) This is linked to (d), as u would've solved for the difference between 2 arbitrary terms Tp & Tp+1. Using the expression derived, you realise that there is a minimum value for the difference between 2 adjacent terms, as n has a certain range of values restricting it too.
Hope this helps
Part (c) is just finding the pattern that is consistent in all the terms. Takes a little creativity, else it shouldn't pose problems.
(d) try to solve this part even if u can't do any of the other parts, as the expression required has already been given by the qn in (c), where they asked u to *show* the expression. With the expression, it becomes a simple matter of subbing in values.
(e) This is linked to (d), as u would've solved for the difference between 2 arbitrary terms Tp & Tp+1. Using the expression derived, you realise that there is a minimum value for the difference between 2 adjacent terms, as n has a certain range of values restricting it too.
Hope this helps
Date Posted:
3 years ago
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