Question

[Hường Hoàng]

`@` `\text {Ans}`

`\downarrow`

`-` Các chữ cái Tiếng Việt có trong cụm từ "Ngoan Ngoãn" gồm:

`\text {N, G, O, A}`

`=>` `P = {N, G, O, A}.`

 

Answer 1

[Nguyễn Thị Thương Hoài]

P = {N, G, O, A}

Answer 2

[Chử Diệu Hoa]

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