If X - 1- 1- 2- 3- 2- 1 P - x-x- X- x- Y for some y- X- Find nP

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Cardinality

If X = 1, 1...

Question

If $X = {{1}, {1, 2}, 3, 2, 1}$
$P = {x | x \in X, x \in Y for some y \in X}$ . Find $n (P)$

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(1 + x + x^{2} + . . . . . + x^{p})^{n} = a_{0} + a_{1} x + a_{2} x^{2} + . . . . . a_{n p} x^{n p}

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R = {x \in R : {log}_{6} x + \frac{2}{{log}_{6} x}} = 3,

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a_{0}, a_{1}, . . . . . a_{n - 1}

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b = p (1)

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x = p - 2

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