豫西名校20202021学年下期期末联考
数学(文)参考答案
x
2)2+6×(-2)=12,在点(2,/(-2)
6且s<6
AC
ACB
∠ABC
(F4+|PH)
9.C
S
<
T
2)+(y+3)
(x+2)+(y+3)
f(x)
)-f(x)
(2+)
(1+)(2-i)
AF⊥AO
∠AFO
b
宴
√6
40
200
999%
AC+(25)-45A30
C
(0
f'(x)
的单
x令(x
h(1)=0
x∈(1,+∞).(x+1)f(x)>g(x)
C
(4k2+1)
4(
k
△=64
4(4
A(,y),N(r2
x
4(
4×48
M
(舍)
(3
√5
l6236/5
x)
7<
8A
A
C
B
D.6
B
14
11
3
1
14
BC
ZUBA
a
4+2/5
a
