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 Use properties of the graph of f(x)=cos⁡x to explain why cos⁡(−32∘)=cos⁡32∘. \text { Use properties of the graph of } f ( x ) = \cos x \text { to explain why } \cos \left( - 32 ^ { \circ } \right) = \cos 32 ^ { \circ } \text {. }

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The cosine function is even an...

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