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94. Trigonometrik tenglamalar. Trigonometrik tenglamalar sistemasi — JAYDARIMOCK
Abituriyent 1-11 to'plami
Trigonometriya
94. Trigonometrik tenglamalar. Trigonometrik tenglamalar sistemasi
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1.
O'rtacha
Tenglamani yeching:
cos
(
3
x
+
4
π
)
=
2
2
A)
6
π
+
3
2
π
k
;\; -
12
π
+
3
2
π
k
,\; k
∈
Z
B)
12
π
+ 2
π
k;\; -
4
π
+ 2
π
k,\; k
∈
Z
C)
±
6
π
+
3
2
π
k
,\; k
∈
Z
D)
3
2
π
k
;\; -
6
π
+
3
2
π
k
,\; k
∈
Z
Javobni tekshirish
Yechim tahlili
Oldingi
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