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a={x thuộc r | 2x^2 - 3x +1 } và b={x thuộc r | | 2x -1 | =1} . Tìm AUB
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Sagot :

Answer:

.

Step-by-step explanation:

-$+3-3-$-3+$+3-4-4-&$-+#($;*:$7$

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