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ǰλãҳ > (完整)1.1任意角与弧度?知识点汇?推荐文档 - 百度文库

(完整)1.1任意角与弧度?知识点汇?推荐文档 - 百度文库

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  • 2025/7/7 1:48:54

Bһ޵Ľ

Cڶ޵ĽDZȵһ޵ĽǴ DǦǵ޽ǵijҪ2kУ

?2k(kZ) 214kZձͬĽ

A2k+1180루4k1180 Bk90k180+90 Ck180+30k36030 Dk180+60k60 15֪Ϊ2ԲĽԵҳҲ2ԲĽԵĻ

A2

B

2 sin1C2sin1 Dsin2

16?ǵձһP(cos

A

?,sin)? 55Bcot?? 53?10

?5

C2k??(k?Z) D2k??9?5(k?Z)

1790㣼180㣬180㣭ձ

AxԳ ByԳ CԭԳ 18輯M={|=

k???kZ}N={|У}MN ???3?7?4?A{,} B{} ,???????3?7?4?3?7?C{,} D{ } ,?,,????10??0?0119sinA?A=30o

2AֶҪ CֱҪ

BҪ DȲҲҪ

20ĽΪ60ΣĻΪ2?Բ뾶Ϊ

A2

B3

C1

D

3 2??k

21輯M={|=kСkZ}N={|=k+(1)

?kZ}ôн?ȷ

AM=N

BMN

CNM

DMNNM

22Ǧǵ޽ǣ

?ǵձ . 223룭1050ձͬС . 24֪?ǵڶ޽ǣ|??2|?4,?ķΧ .

5

ǵǺϰ

һѡ

1. ?ڵڶޣcos?2??cos?2

?ڣ 2A. һ B. ڶ C. D.

sin02. иֵsin(?1000)cos(?2200)tan(?10)

07?cos?10. 17?tan9зΪУ

A. B. C. D. 3.

sin21200ڣ

A. ?3331 B. C. ? D. 22224. ֪sin??4?ǵڶ޵Ľǣôtan?ֵڣ 54334A. ? B. ? C. D.

433453

5ȡʣ 12sincos

42

A.cosȣsin

C.sinȣcos

B.sinȣcos D.cosȣsin

1

6tanȣ cos2ȣsincosȵֵ

3

6A.

5

44

B. C.

55

6

D.

5

1. ?ֱǵڶ޽ǣP(sin?,cos?)ֱڵ_________. 2. MPOMֱǽ

17?ߺߣ²ʽ18MP?OM?0OM?0?MP OM?MP?0MP?0?OM ȷ_____________________________.

6

3Ǧձֱyxϣ

sin?1?sin2??1?cos2? .

cos?4ʹtanx

1xļΪ . sinx4

5֪ǵڶ޵Ľǣcos ǵ ޵Ľ.

252

1. ֪tan?1722ǹxķx?kx?k?3?0ʵ3?????

2tan?cos??sin?ֵ.

mn

2. cosȣ mn0)ȵǺֵ.

mn

3֤(1)

12sincos1tan

cos2ȣsin21tan

(2)tan2ȣsin2ȣtan2sin2

4. ֪sinx?cosx?m,(m?3342,m?1)

41sinx?cosx2sinx?cosxֵ.

7

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Bһ޵Ľ Cڶ޵ĽDZȵһ޵ĽǴ DǦǵ޽ǵijҪ2kУ?2k(kZ) 214kZձͬĽ A2k+1180루4k1180 Bk90k180+90 Ck180+30k36030 Dk180+60k60 15֪Ϊ2ԲĽԵҳҲ2ԲĽԵĻ A2 B 2 sin1C2sin1 Dsin2 16?ǵձһP(cos A?,sin)? 55Bcot?? 53?10 ?5 C2k??

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