绗?/p>
1
椤碉紙鍏?/p>
7
椤碉級
銆愪範棰橀泦鍚瑙ｃ�戦珮涓暟瀛﹂搴撻珮鑰冧笓鐐逛笓缁冧箣
64
涓囪兘鍏紡
涓�銆侀�夋嫨棰橈紙鍏?/p>
4
灏忛锛涘叡
20
鍒嗭級
1.
宸茬煡
tan
饾浖
2
=
3
锛屽垯
cos饾浖
=
(
)
A.
鈭?/p>
3
5
B.
鈭?/p>
4
5
C.
鈭?/p>
4
15
D.
鈭?/p>
3
15
2.
鑻?/p>
cot饾渻鈭?
2cot饾渻+1
=
1
锛屽垯
cos2胃
鐨勫�间负
(
)
A.
3
5
B.
鈭?/p>
3
5
C.
2
鈭?/p>
5
5
D.
鈭?
2
鈭?/p>
5
5
3.
宸茬煡瑙?/p>
饾渻
鐨勫杈逛笌
饾懃
杞寸殑闈炶礋鍗婅酱閲嶅悎锛岀粓杈硅繃鐐?/p>
饾憖
(
鈭?,4
)
锛屽垯
cos2饾渻
鐨勫�间负
(
)
A.
鈭?/p>
7
25
B.
7
25
C.
鈭?/p>
24
25
D.
24
25
4.
缁欏嚭涓嬪垪涓変釜鍛介锛?/p>
鈶犲嚱鏁?/p>
饾懄
=
1
2
ln
1鈭抍os饾懃
1+cos饾懃
涓?/p>
饾懄
=
lntan
饾懃
2
鏄悓涓�鍑芥暟锛?/p>
鈶¤嫢鍑芥暟
饾懄
=
饾憮
(
饾懃
)
涓?/p>
饾懄
=
饾憯
(
饾懃
)
鐨勫浘璞″叧浜庣洿绾?/p>
饾懄
=
饾懃
瀵圭О锛屽垯鍑芥暟
饾懄
=
饾憮
(
2饾懃
)
涓?/p>
饾懄
=
1
2
饾憯
(
饾懃
)
鐨?/p>
鍥捐薄涔熷叧浜庣洿绾?/p>
饾懄
=
饾懃
瀵圭О锛?/p>
鈶㈣嫢濂囧嚱鏁?/p>
饾憮
(
饾懃
)
瀵瑰畾涔夊煙鍐呬换鎰?/p>
饾懃
閮芥湁
饾憮
(
饾懃
)
=
饾憮
(
2
鈭?/p>
饾懃
)
锛屽垯
饾憮
(
饾懃
)
涓哄懆鏈熷嚱鏁帮紟
鍏朵腑鐪熷懡棰樻槸
(
)
A.
鈶犫憽
B.
鈶犫憿
C.
鈶♀憿
D.
鈶?/p>
浜屻�佸～绌洪锛堝叡
3
灏忛锛涘叡
15
鍒嗭級
5.
鑻?/p>
1+tan饾浖
1鈭抰an饾浖
=
2010
锛屽垯
1
cos2饾浖
+
tan2饾浖
=
锛?/p>
6.
宸茬煡
sin
(饾渻
+
蟺
6
)
sin
(饾渻
鈭?/p>
蟺
6
)
=
11
20
锛屽垯
tan饾渻
=
锛?/p>
7.
宸茬煡
tan
(
饾浖
+
饾浗
)
=
4
锛?/p>
tan
(
饾浖
鈭?/p>
饾浗
)
=
2
锛屽垯
sin4饾浖
鐨勫�间负
锛?/p>
涓夈�佽В绛旈锛堝叡
9
灏忛锛涘叡
117
鍒嗭級
8.
宸茬煡
4sin
2
饾懃
鈭?/p>
6sin饾懃
鈭?/p>
cos
2
饾懃
+
3cos饾懃
=
0
锛屾眰
cos2饾懃鈭抯in2饾懃
(
1鈭抍os2饾懃
)(
1鈭抰an2饾懃
)
鐨勫�硷紟
9.
宸茬煡
4sin
2
饾懃
鈭?/p>
6sin饾懃
鈭?/p>
cos
2
饾懃
+
3cos饾懃
=
0
锛屾眰
cos2饾懃鈭?
4
5
(
1鈭抍os2饾懃
)(
1鈭抰an饾懃
)
鐨勫�硷紟
10.
宸茬煡閿愯
饾浖
锛?/p>
饾浗
婊¤冻
tan
(
饾浖
鈭?/p>
饾浗
)
=
sin2饾浗
锛屾眰璇侊細
2tan2饾浗
=
tan饾浖
+
tan饾浗
锛?/p>
11.
宸茬煡鍚戦噺
饾憥
鈨?/p>
=
(
3sin饾浖,
cos饾浖
)
锛?/p>
饾憦
鈨?/p>
鈨?/p>
=
(
2sin饾浖,
5sin饾浖
鈭?/p>
4cos饾浖
)
锛?/p>
饾浖
鈭?/p>
(
3蟺
2
,
2蟺)
锛屼笖
饾憥
鈨?/p>
鈯?/p>
饾憦
鈨?/p>
鈨?/p>
锛?/p>
锛?/p>
1
锛夋眰
tan饾浖
鐨勫�硷紱
锛?/p>
2
锛夋眰
cos
饾浖
2
+
蟺
3
鐨勫�硷紟
12.
鍦ㄩ攼瑙掍笁瑙掑舰
饾惔饾惖饾惗
涓紝鏈?/p>
2tan饾惖
=
tan饾惔
+
tan饾惗
锛屼笖
饾憮
(
饾懃
)
婊¤冻
饾憮
(
cos2饾惗
)
=
cos
(
饾惖
+
饾惗
鈭?/p>
饾惔
)
锛屾眰锛?/p>
锛?/p>
1
锛?/p>
tan饾惔tan饾惗
鐨勫�硷紱
锛?/p>
2
锛?/p>
饾憮
(
饾懃
)
鐨勮В鏋愬紡锛?/p>
13.
鐐?/p>
饾惔
锛?/p>
饾惖
鍒嗗埆鍦ㄥ皠绾?/p>
饾憴
1
:
饾懄
=
2饾懃
(
饾懃
鈮?/p>
0
)
锛?/p>
饾憴
2
:
饾懄
=
鈭?饾懃
(
饾懃
鈮?/p>
0
)
涓婅繍鍔紝涓?/p>
饾憜
鈻仇潗答潙傪潗?/p>
=
4
锛?/p>