Final answer:
The sentence 'La bibliothèque est situé au coin.' is grammatically incorrect in French.
Step-by-step explanation:
The sentence La bibliothèque est situé au coin is grammatically incorrect. In French, when referring to a feminine noun like la bibliothèque, the verb être (to be) should match in gender and number. Since la bibliothèque is singular and feminine, the correct form of the verb should be est située.
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