我發現sin跟cos是一對互攻的小情侶
如果他們躺著(0°)sin是0 cos是1
如果他們站著(90°)sin是1 cos是0
ns216.73.216.82da2我發現sin跟cos是一對互攻的小情侶8964 copyright protection165PENANAIqo7fU1pdN 維尼
如果他們躺著(0°)sin是0 cos是1 8964 copyright protection165PENANAPhkBvRWdxD 維尼
如果他們站著(90°)sin是1 cos是08964 copyright protection165PENANAiyB0XFgBa4 維尼
216.73.216.82
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