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Ktra 15'''' _ logarit
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SỞ GIÁO DỤC VÀ ĐÀO TẠO
TRƯỜNG THPT HƯỚNG HOÁ
BÀI KIỂM TRA
MÔN : TOÁN 12 - NÂNG CAO.
Thời gian làm bài: 15 phút;
ĐIỂM Mã đề thi
100
Họ, tên :..........................................................................Lớp:.........................
ĐỀ RA :
1. Tìm x biết (6 điểm):
log ( 1) 3log 1 5 0
3
1
2
3
x − + − x + =
2. Tính (3 điểm) : 9
8
2 log 3
log
9
1
9
+
. 3. So sánh (1 điểm) :
2
)
2
(
π
và 3
)
5
(
π −
BÀI LÀM :
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