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91. Trigonometrik funksiyalar ko'paytmasi uchun formulalar — JAYDARIMOCK
Abituriyent 1-11 to'plami
Trigonometriya
91. Trigonometrik funksiyalar ko'paytmasi uchun formulalar
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1.
O'rtacha
Hisoblang:
cos
5
π
cos
5
2
π
A)
4
1
B)
2
1
C)
4
5
−
1
D)
4
5
+
1
Javobni tekshirish
Yechim tahlili
Oldingi
Keyingi
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