69. Sin 90^° = 1 and sin 360^° = what

69. Sin 90^° = 1 and sin 360^° = what
69- Sin 90- - 1 and sin 360- - what

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sin 90°=1 why and how?

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Sin(90-A), Sin(90+A), Cos(180-A), Cos(180+A), Sin(270-A), Sin(270+A),Cos(360-A) How Why Trigonometry

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sin 90°=1 why and how?

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