鍏勾绾т笂鏈熸湯妯℃嫙鍗?/p>
1
锛?/p>
鑻ユ姣斾緥鍑芥暟鐨勫浘鍍忕粡杩囩偣锛堬紞
1
锛?/p>
2
锛夛紝鍒欒繖涓浘鍍忓繀缁忚繃鐐?/p>
A
锛?/p>
(
1
锛?/p>
2
)
B
锛?/p>
(
锛?/p>
1
锛岋紞
2
)
C
锛?/p>
(
2
锛岋紞
1
)
D
锛?/p>
(
1
锛岋紞
2
)
2
锛?/p>
涓嬪垪鍥惧舰鏄酱瀵圭О鍥惧舰鐨勬槸
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
3
锛?/p>
濡傚浘锛屸柍
ACB
鈮屸柍
A
鈥?/p>
CB
鈥?/p>
锛屸垹
BCB
鈥?/p>
=30掳
锛屽垯鈭?/p>
ACA
鈥?/p>
鐨勫害鏁颁负
A
锛?/p>
20掳
B
锛?/p>
30掳
C
锛?/p>
35掳
D
锛?/p>
40掳
4
锛?/p>
涓�娆″嚱鏁?/p>
y
=2
x
锛?/p>
2
鐨勫浘璞′笉缁忚繃
锛庯紟锛?
鐨勮薄闄愭槸
A
锛庣涓�璞￠檺
B
锛庣浜岃薄闄?/p>
C
锛庣涓夎薄闄?/p>
D
锛庣鍥涜薄闄?/p>
5
锛?/p>
鏄庢槑楠戣嚜琛岃溅鍘讳笂瀛︽椂锛岀粡杩囦竴娈靛厛涓婂潯鍚庝笅鍧＄殑璺紝鍦ㄨ繖娈佃矾涓?/p>
鎵�璧扮殑璺▼
s(
鍗曚綅锛氬崈绫筹級涓庢椂闂?/p>
t
(
鍗曚綅锛氬垎锛変箣闂寸殑鍑芥暟鍏崇郴濡傚浘鎵�
绀猴紟鏀惧鍚庡鏋滄寜鍘熻矾杩斿洖锛屼笖寰�杩旇繃绋嬩腑锛屼笂鍧￠�熷害鐩稿悓锛屼笅鍧￠�熷害
鐩稿悓锛岄偅涔堜粬鍥炴潵鏃讹紝璧拌繖娈佃矾鎵�鐢ㄧ殑鏃堕棿涓?/p>
A
锛?/p>
12
鍒?/p>
B
锛?/p>
10
鍒?/p>
C
锛?/p>
16
鍒?/p>
D
锛?/p>
14
鍒?/p>
浜屻�佸～绌洪锛?/p>
6
锛?/p>
涓�娆″嚱鏁?/p>
(2
4)
5
y
k
x
飥?/p>
飥?/p>
飥?/p>
涓紝
y
闅?/p>
x
澧炲ぇ鑰屽噺灏忥紝鍒?/p>
k
鐨勫彇鍊艰寖
鏄?/p>
锛?/p>
7
锛?/p>
濡傚浘锛屽湪
Rt
鈻?/p>
ABC
涓紝鈭?/p>
B
=90掳
,
ED
鏄?/p>
AC
鐨勫瀭鐩村钩鍒嗙嚎锛?/p>
浜?/p>
AC
浜庣偣
D
,
浜?/p>
BC
浜庣偣
E
.
宸茬煡鈭?/p>
BAE
=16掳
,
鍒欌垹
C
鐨勫害鏁?/p>
涓?/p>
锛?/p>
锛?/p>
8
锛?/p>
濡傚浘锛岀洿绾?/p>
y
kx
b
飥?/p>
飥?/p>
缁忚繃鐐?/p>
(
1
2)
A
飥?/p>
飥?/p>
锛?/p>
鍜岀偣
(
2
0)
B
飥?/p>
锛?/p>
锛岀洿绾?/p>
2
y
x
飥?/p>
杩囩偣
A
锛屽垯涓嶇瓑寮?/p>
2
0
x
kx
b
飥?/p>
飥?/p>
飥?/p>
鐨勮В闆嗕负
锛?/p>
9
锛?/p>
宸茬煡鈻?/p>
ABC
涓紝
AB
=
BC
鈮?/p>
AC
锛屼綔涓庘柍
ABC
鍙湁涓�鏉″叕鍏辫竟锛屼笖涓庘柍
ABC
鍏ㄧ瓑鐨勪笁瑙掑舰锛?/p>
杩欐牱鐨勪笁瑙掑舰涓�鍏辫兘浣滃嚭
涓?/p>
.
C
A
B
B
飩?
A
飩?/p>
锛堢
4
棰橈級
A
D
C
E
B
锛堢
12
棰橈級
锛堢
16
棰橈級
O
x
B
A
y
锛堢
8
棰橈級
s
/
鍗冪背
t
/
鍒?/p>
3
2
1
O
6
10