Evaluate cos 3pi

We have to evaluate cos 3π cos 3π = cos 3 (180)= cos 5400 cos 540° = cos (540) = cos (180 + 360) = -1 Answer cos 3π = -1

We have to evaluate cos 3π

cos 3π = cos 3 (180)= cos 5400

cos 540° = cos (540) = cos (180 + 360) = -1

Answer

cos 3π = -1

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