一道高中数学题(三角函数的)SIN 9°+COS15°SIN6°——————————-等于多少,COS 9°-SIN15°SIN6°
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 01:33:14
![一道高中数学题(三角函数的)SIN 9°+COS15°SIN6°——————————-等于多少,COS 9°-SIN15°SIN6°](/uploads/image/z/14115250-10-0.jpg?t=%E4%B8%80%E9%81%93%E9%AB%98%E4%B8%AD%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%88%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0%E7%9A%84%EF%BC%89SIN+9%C2%B0%2BCOS15%C2%B0SIN6%C2%B0%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94-%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%2CCOS+9%C2%B0-SIN15%C2%B0SIN6%C2%B0)
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