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1. x-y=1 , x+y =3 হলে , (x,y) =কোনটি?
- A. (1,2)
- B. (1,2)
- C. (1,2)
- D. (1,2)
Answer: Option B
Explanation:
2 - 1 = 1, 2 + 1 = 3, (x,y) = (2, 1)
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