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Tìm giá trị lớn nhất giá trị nhỏ nhất Cos(x+π/3)+ cos(x-π/3)
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Jun 8, 2022
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Tìm giá trị lớn nhất giá trị nhỏ nhất
Cos(x+π/3)+ cos(x-π/3)
Mathematics
high-school
Sapan
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Answer:
GTLN : 1 GTNN: -1
Explanation:
Ta có:
mà
Nên Max
,
∈
Min
,
∈
Mateusz Pusz
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Jun 15, 2022
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Mateusz Pusz
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