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> (A)                       (B)(C)                       ...

(A)                       (B)(C)                       ...

问题详情:

(A)                       (B)(C)                       ...

(A)(A)                       (B)(C)                       ... 第2张                        (B)(A)                       (B)(C)                       ... 第3张

(C)(A)                       (B)(C)                       ... 第4张                           (D)(A)                       (B)(C)                       ... 第5张

【回答】

(A)                       (B)(C)                       ... 第6张 

知识点:三角恒等变换

题型:选择题

标签: BC
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