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角α与-α的正弦函数关系
Author:
lelove2212
验证：角α与-α的正弦函数关系
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Template: 圓周
未命名
埕瑋_幾何證明_p12_類題演練
正弦型函数水平伸缩观察
直角三角形的內心與相似
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animation 3
test
硬币
-(√3/2)³ ≤ sinα sinβ sinγ ≤ (√3/2)³
temp2
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Trapezoid
Pyramid
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Multiplication
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