{x ∈ N: x, 42 এর গুণনীয়ক} সেটটি তালিকা রূপ কোনটি?

A {1, 2, 3, 6, 7, 14, 21, 42}

B {1, 3, 6, 7, 14, 42}

C {1, 2, 3, 6, 14, 42}

D {1, 2, 3, 6, 8, 14, 21, 42}

Solution

Correct Answer: Option A

সমাধান:
42 = 1 × 42
     = 2 × 21
     = 3 × 14
     = 6 × 7
∴ 42 এর গুণনীয়ক = 1, 2, 3, 6, 7, 14, 21, 42
∴ তালিকা পদ্ধতি = {1, 2, 3, 6, 7, 14, 21, 42}

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