23 The first term of a geometric sequence is a, and the common ratio, r, is positive 10a (i) Given that the sum of the second and third terms is, calculate the value of r (ii) Given also that the sum of the first 4 terms is 65, calculate the value of a and hence calculate the sum to infinity of th...

23. The first term of a geometric sequence is a, and the common ratio, r, is...

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Discrete Mathematics and Its Applications

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23. The first term of a geometric sequence is a, and the common ratio, r, is...

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