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TMUAmockz Set 1 Paper 1 · Q7

Paper 1Sequences & seriesNumber & counting

For some integer n>1n>1, the infinite series 2n+3n2+2n3+3n4+⋯=751\dfrac2n+\dfrac3{n^2}+\dfrac2{n^3}+\dfrac3{n^4}+\cdots=\dfrac7{51}. Find the value of nn.

A1313
B1414
C1515
D1616
E1717
F1818

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