绮惧搧
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銆?/p>
2019
鏈�鏂般�戠簿閫夐珮鑰冩暟瀛︿竴杞涔犵浜旂珷鏁板垪
5-5
鏁板垪鐨勭患鍚堝簲鐢ㄨ
鏃舵彁鍗囦綔涓氱悊
(20
鍒嗛挓
40
鍒?/p>
)
涓�銆侀�夋嫨棰?/p>
(
姣忓皬棰?/p>
5
鍒?/p>
,
鍏?/p>
25
鍒?/p>
)
1.(2014
路鍖椾含楂樿�?/p>
)
璁?/p>
{an}
鏄叕姣斾负
q
鐨勭瓑姣旀暟鍒?/p>
,
鍒欌�?/p>
q>1
鈥濇槸鈥?/p>
{an}
涓洪�掑鏁板垪鈥?/p>
鐨?/p>
(
)
A.
鍏呭垎涓嶅繀瑕佹潯浠?/p>
B.
蹇呰涓嶅厖鍒嗘潯浠?/p>
C.
鍏呭垎蹇呰鏉′欢
D.
鏃笉鍏呭垎涔熶笉蹇呰鏉′欢
銆愯В鏋愩�戦�?/p>
D.
褰?/p>
a1<0,q>1
鏃?/p>
,{an}
鏄�掑噺鏁板垪
;
褰?/p>
{an}
涓洪�掑鏁板垪鏃?/p>
,a1<0,0<q<1
鎴?/p>
a1>0,q>1.
鍥犳
,
鈥?/p>
q>1
鈥濇槸鈥?/p>
{an}
涓洪�掑鏁板垪鈥濈殑鏃笉鍏呭垎涔熶笉蹇呰鏉′欢
.
銆愬姞鍥鸿缁冦�?/p>
(2016路鍗楁槍妯℃嫙
)
鍦ㄥ叕宸笉涓?/p>
0
鐨勭瓑宸暟鍒?/p>
{an}
涓?/p>
,2a3-+2a11=0,
鏁板垪
{bn}
鏄瓑姣旀暟鍒?/p>
,
涓?/p>
b7=a7,
鍒?/p>
b6b8=
(
)
A.2
B.4
C.8
D.16
銆愯В鏋愩�?/p>
閫?/p>
D.
鍥犱负
{an}
鏄瓑宸暟鍒?/p>
,
鎵�浠?/p>
a3+a11=2a7,
鎵�浠?/p>
2a3-+2a11=4a7-=0,
瑙ｅ緱
a7=0
鎴?/p>
4,
鍥犱负
{bn}
涓虹瓑姣旀暟鍒?/p>
,
鎵�浠?/p>
bn
鈮?/p>
0,
鎵�浠?/p>
b7=a7=4,b6b8==16.
2.
璁?/p>
y=f(x)
鏄?/p>
涓�
娆?/p>
鍑?/p>
鏁?/p>
,
鑻?/p>
f(0)=1,
涓?/p>
f(1),f(4),f(13)
鎴?/p>
绛?/p>
姣?/p>
鏁?/p>
鍒?/p>
,
鍒?