Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663A/01) | Year 2014 | January | Q#5
Question
Given that for all positive integers n,
a) find the value of
b) Find the value of
Solution
a.
We are given that;
We are required to find .
Therefore, we substitute n=5;
b.
We are required to find .
We can find as follows;
Therefore ;
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