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Can someone please answer. There is one problem. There's a picture. Thank you!!

Can someone please answer. There is one problem. There's a picture. Thank you!!-example-1
asked
User Ilitirit
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1 Answer

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Cos(-θ) = Cosθ By trigonometric identity.

Cos(-360) = Cos360

Cos360 = 1
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User Joshua Kelly
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