Question

some basic cos theta values ​

Answer 1

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cos0° = 1

cos30° = √3/2

cos45° = 1/√2

cos60° = 1/2

cos90° = 0

cos180° = -1

Answer 2

Answer:

cos0°=1

cos30°=√3/2

cos 45°=1/√3

cos 60°=1/2

cos 90°=1