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ǰλãҳ > (优辅资源)河北省武邑中学高三上学期期末考试数学(?试题Word版含答案 - 百度文库

(优辅资源)河北省武邑中学高三上学期期末考试数学(?试题Word版含答案 - 百度文库

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ϣaȡֵΧΪa?0.

22.⣺1C1IJΪ??x?1?cos??Ϊ?????0

y?sin??ͨΪ?x?1??y?1?y?0?

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2???????,??2P?2,??

4?4???????4C2ļ귽̣ɵ???62Q?62,???? 4?PQ?62?2?52

23.⣺1x?1?0x??1ʱx?1?2x?1?1?x?0

x?1?0x??1ʱ?x?1?2x?1x??1 ಻ʽĽ⼯Ϊ?x|x?0?

2f?x?2??x?1,f?x?6??x?7x?1?x?7?m

?x?Rʹʽx?1?x?7?mmx?1?x?7Сֵ

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Ʒ f?x?㣻a?1ʱɣ1֪f?x????,0?,?lna,????0,lna?ݼx?0ʱf?x?мֵf?0???1?0f?x?㣬 ϣaȡֵΧΪa?0. 22.⣺1C1IJΪ??x?1?cos??Ϊ?????0 y?sin??ͨΪ?x?1??y?1?y?0? 22?13x??t????C귽Ϊ??2cos?,????,0?2IJΪ? 22tΪ2???y?5?3t?ͨ2x?y?6?0 2???????,??2P?2,?? 4?4???????4C2ļ귽̣ɵ???62Q?62,????

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