闄曡タ鐪佽タ瀹夊競楂樻柊绗竴涓
2018
灞婁節骞寸骇涓婂鏈熺涓�娆℃湀鑰冩暟瀛﹁瘯棰?/p>
(
鏃犵瓟妗?/p>
)
1 / 6
2017~2018
瀛﹀勾搴︾涓�瀛︽湡鏈堣�冧竴
涔濆勾绾?/p>
鏁板
涓�銆侀�夋嫨棰橈細
锛堟湰棰樺叡
10
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庡鍥撅紝鍦?/p>
ABC
鈻?/p>
涓紝
90
C
飪?/p>
飥?/p>
飩?/p>
锛?/p>
13
AB
飥?/p>
锛?/p>
5
BC
飥?/p>
锛屽垯
sin
A
鐨勫�兼槸锛?/p>
锛?/p>
锛?/p>
A
B
C
A
锛?
5
13
B
锛?
12
13
C
锛?
5
12
D
锛?
13
5
2
锛庢姏鐗╃嚎
2
3
1
3
5
2
y
x
飪?/p>
飪?
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
鐨勯《鐐瑰潗鏍囨槸锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
1
,
3
2
飪?/p>
飪?
飥?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
B
锛?/p>
1
,
3
2
飪?/p>
飪?
飥?/p>
飥?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
C
锛?/p>
1
,3
2
飪?/p>
飪?
飪?/p>
飪?/p>
飪?/p>
飪?
D
锛?/p>
1
,3
2
飪?/p>
飪?/p>
飥?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
3
锛庡湪
Rt
ABC
鈻?/p>
涓紝
90
C
飪?/p>
飥?/p>
飩?/p>
锛岀洿瑙掕竟
AC
鐨勯暱涓?/p>
m
锛?/p>
35
A
飪?/p>
飥?/p>
飩?/p>
锛屽垯鏂滆竟
AB
鐨勯暱鏄紙
锛?/p>
锛?/p>
A
锛?/p>
sin35
m
飩?/p>
B
锛?/p>
cos35
m
飩?/p>
C
锛?
sin35
m
飩?
D
锛?
cos35
m
飩?
4
锛庤嫢浜屾鍑芥暟
2
y
ax
飥?/p>
鐨勫浘璞＄粡杩囩偣
(
2,4)
P
飥?/p>
锛屽垯璇ュ浘璞″繀缁忚繃鐐癸紙
锛?/p>
锛?/p>
A
锛?/p>
(2,4)
B
锛?/p>
(
2,
4)
飥?/p>
飥?/p>
C
锛?/p>
(
4,2)
飥?/p>
D
锛?/p>
(4,
2)
飥?/p>
5
锛?/p>
濡傚浘锛?/p>
鍦?/p>
Rt
ABC
鈻?/p>
涓紝
90
ACB
飪?/p>
飥?/p>
飩?/p>
锛?/p>
CD
AB
飦?/p>
浜庣偣
D
锛?/p>
3
BC
飥?/p>
锛?/p>
4
AC
飥?/p>
锛?
鍒?/p>
cos
DCB
飪?/p>
鐨勫�间负
锛?/p>
锛?/p>
锛?/p>
D
A
B
C
A
锛?/p>
3
5
B
锛?
4
5
C
锛?
3
4
D
锛?
4
3
6
锛庡鍥撅紝鐩寸嚎
y
mx
飥?/p>
涓庡弻鏇茬嚎
k
y
x
飥?
浜や簬
A
锛?/p>
B
涓ょ偣锛岃繃鐐?/p>
A
浣?/p>
AM
x
飦?/p>
杞达紝鍨傝冻涓虹偣
M
锛岃繛鎺?/p>
BM
锛?/p>
鑻?/p>
4
ABM
S
飥?/p>
鈻?/p>
锛屽垯
k
鐨勫�间负锛?/p>
锛?/p>
锛?/p>