帮忙转换一下sin、cos、tan的度数
0°、15°、30°、45°、60°、90°、120°、150°、180°、270° 转换成sin、cos、tan的
人气：495 ℃ 时间：2020-03-19 12:59:39
解答
你是要转化：sin30°=二分之一 这种形式吗?
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