绗?/p>
1
椤碉紙鍏?/p>
26
椤碉級
2018-2019
瀛﹀勾澶╂触甯傚崡寮�鍖哄叓骞寸骇锛堜笂锛夋湡涓暟瀛﹁瘯鍗?/p>
涓�銆侀�夋嫨棰橈細鏈ぇ棰樺叡
12
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
36
鍒嗭紝鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓?/p>
閫夐」涓紝鍙湁涓�椤规槸绗﹀悎棰樼洰瑕佹眰鐨?/p>
1
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘鍥炬鏄酱瀵圭О鍥惧舰鐨勬槸锛?/p>
锛?/p>
A
锛?
B
锛?
C
锛?
D
锛?
2
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘锛?/p>
鑻?/p>
AB=AD
锛?/p>
鍒欐坊鍔犱笅鍒椾竴涓潯浠跺悗锛屼粛鏃犳硶鍒ゅ畾鈻?/p>
ABC
鈮屸柍
ADC
鐨勬槸锛?/p>
锛?/p>
A
锛庘垹
BAC=
鈭?/p>
DAC
B
锛庘垹
BCA=
鈭?/p>
DCA
C
锛?/p>
CB=CD
D
锛庘垹
B=
鈭?/p>
D=90掳
3
锛?/p>
锛?/p>
3
鍒嗭級涓嬪垪杩愮畻姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A
锛庯梗
a
锛?/p>
a
锕?/p>
b
锛?/p>
=
锕?/p>
a
2
锕?/p>
ab
B
锛?/p>
锛?/p>
2ab
锛?/p>
2
+
a
2
b=4ab
C
锛?/p>
2ab鈥?a=6a
2
b
D
锛?/p>
锛?/p>
a
锕?/p>
1
锛?/p>
锛?/p>
1
锕?/p>
a
锛?/p>
=a
2
锕?/p>
1
4
锛?/p>
锛?/p>
3
鍒嗭級鍦ㄤ笅鍒楄娉曚腑锛屾纭殑鏄紙
锛?/p>
A
锛庡鏋滀袱涓笁瑙掑舰鍏ㄧ瓑锛屽垯瀹冧滑蹇呮槸鍏充簬鐩寸嚎鎴愯酱瀵圭О鐨勫浘褰?/p>
B
锛庡鏋滀袱涓笁瑙掑舰鍏充簬鏌愮洿绾挎垚杞村绉帮紝閭ｄ箞瀹冧滑鏄叏绛変笁瑙掑舰
C
锛庣瓑鑵颁笁瑙掑舰鏄叧浜庡簳杈逛腑绾挎垚杞村绉扮殑鍥惧舰
D
锛庝竴鏉＄嚎娈垫槸鍏充簬缁忚繃璇ョ嚎娈典腑鐐圭殑鐩寸嚎鎴愯酱瀵圭О鐨勫浘褰?/p>
5
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘
AB=CD
锛?/p>
AD=BC
锛岃繃
O
鐐圭殑鐩寸嚎浜?/p>
AD
浜?/p>
E
锛屼氦
BC
浜?/p>
F
锛屽浘涓叏
绛変笁瑙掑舰鏈夛紙
锛?/p>