3. Let z be the number with the decimal expression 0.a1 a2 a3 a4..., where an is the remainder of n upon division by 7. Is x rational? Justify your answer.

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Q: Problem 0.4 diverge: (4) Σ=1 (5) Ex-1(-1/2-1/2) n=1\n Determine whether the following series…

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