find geometrically all trignometric ratio for angle 60
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sin 0° = √(0/4) = 0sin 30° = √(1/4) = ½sin 45° = √(2/4) = 1/√2 = √2/2sin 60° = √3/4 = √3/2;cos 90° = √(4/4) = 1.
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