浼樼瀛︿範璧勬枡
娆㈣繋涓嬭浇
鏈�鏂板寳甯堝ぇ鐗堜節骞寸骇鏁板涓婃湡鏈瘯鍗?/p>
(
涔?/p>
)
涓�銆侀�夋嫨棰橈紙姣忛
3
鍒嗭紝鍏辫
30
鍒嗭級
1.
涓嬪垪鍥惧舰涓紝鏃㈡槸杞村绉板浘褰㈠張鏄腑蹇冨绉板浘褰㈢殑鏄紙
锛?/p>
2
锛庡鏋滀袱涓浉浼煎杈瑰舰鐨勭浉浼兼瘮涓?/p>
1:5
锛屽垯瀹冧滑鐨勯潰绉瘮涓猴紙
锛?/p>
A. 1:25
B.1:5
C.1:2.5
D.1:
5
3.
鍦?/p>
Rt
鈻?/p>
ABC
涓紝鈭?/p>
C
=90掳
锛?/p>
AC
=6
锛?/p>
BC
=8
鍒?/p>
sinA
鐨勫�肩瓑浜庯紙
锛?/p>
A.
4
3
B.
3
4
C.
5
3
D.
4
5
4.
濡傚浘鎵�绀虹殑鍑犱綍浣撴槸鐢变竴浜涙鏂逛綋缁勫悎鑰屾垚鐨勭珛浣撳浘褰紝鍒欒繖涓嚑浣曚綋鐨勪刊瑙嗗浘鏄?/p>
(
)
锛?/p>
5.
灏嗘姏鐗╃嚎
y
=
锕?/p>
2
x
2
+1
鍚戝彸骞崇Щ
1
涓崟浣嶏紝鍐嶅悜涓嬪钩绉?/p>
3
涓崟浣嶅悗鎵�寰楀埌鐨勬姏鐗╃嚎涓猴紙
锛?/p>
A.
y
=
锛?/p>
2(
x
+1)
2
锛?/p>
2
B.
y
=
锛?/p>
2(
x
+1)
2
锛?/p>
4
C.
y
=
锛?/p>
2(
x
锛?/p>
1)
2
锛?/p>
2
D.
y
=
锛?/p>
2(
x
锛?/p>
1)
2
锛?/p>
4
6.
鍦ㄤ笉閫忔槑鐨勫彛琚嬩腑瑁呮湁闄ら鑹插鍏跺畠閮界浉鍚岀殑
3
涓粦鐞冨拰
4
涓櫧鐞冿紝浠绘剰浠庡彛琚嬩腑鎽稿嚭涓�涓悆鏉ワ紝
鎽稿埌鐧界悆鐨勬鐜囦负锛?/p>
锛?/p>
A
锛?
4
3
B
锛?/p>
3
4
C
锛?/p>
7
3
D
锛?/p>
7
4
7
锛庤嫢鍙屾洸绾?/p>
y
=
x
k
1
飥?/p>
鐨勫浘璞＄粡杩囩浜屻�佸洓璞￠檺锛屽垯
k
鐨勫彇鍊艰寖鍥存槸
(
)
A
锛?/p>
k
>1
B
锛?/p>
k
鈮?
C
锛?/p>
k
<1
D
锛?/p>
k
鈮?
8
锛庡鍥撅紝鍦ㄢ柍
ABC
涓紝鈭?/p>
CAB
=70掳
锛屽湪鍚屼竴骞抽潰鍐咃紝灏嗏柍
ABC
缁曠偣
A
鏃嬭浆鍒扳柍
AB
鈥?/p>
C
鈥?/p>
鐨勪綅缃紝浣垮緱
CC
鈥?/p>
鈭?/p>
AB
锛屽垯鈭?/p>
BAB
鈥?
锛?/p>
锛?/p>
绗?/p>
8
棰樺浘
C'
B'
A
B
C
绗?/p>
9
棰樺浘
x
=-1
-1
1
O
x
y
绗?/p>
10
棰樺浘