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The range of f(x)= 5cosx is

The range of f(x)= 5cosx is
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The range of f(x)= 5cosx is

User Alex Bogias
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1 Answer

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Hello,



-1 \leq cos(x) \leq 1\\ \Rightarrow\ -1*5 \leq 5*cos(x) \leq 5*1\\ \Rightarrow\ -5 \leq f(x) \leq 5\\


User Latik
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