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20. 20-savollar to'plami — JAYDARIMOCK
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1.
O'rtacha
📌
Matematika (04.12.2022)
lo
g
c
o
s
2
x
(
sin
2
x
)
≤
1
tengsizlikni yeching.
A)
[
8
π
+
π
k
;
4
π
+
π
k
]
,
k
∈
Z
B)
[
8
π
+
π
k
;
8
5
π
+
π
k
]
,
k
∈
Z
C)
[
8
π
+
π
k
;
4
π
+
π
k
)
,
k
∈
Z
D)
[
4
π
+
2
π
k
;
4
5
π
+
2
π
k
)
,
k
∈
Z
Javobni tekshirish
Yechim tahlili
Oldingi
Keyingi
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