高一数学必修四的一种超简单的类型题求解这种题思路,方法 1.y=sin(1/2)x+(根号3)cos(1/2)x (x为未知数)2.y=sin²x+sin2x+3cos²x(求最小值)3.cos²² —2sinxcosx—sin²²X(²²为
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![高一数学必修四的一种超简单的类型题求解这种题思路,方法 1.y=sin(1/2)x+(根号3)cos(1/2)x (x为未知数)2.y=sin²x+sin2x+3cos²x(求最小值)3.cos²² —2sinxcosx—sin²²X(²²为](/uploads/image/z/10309786-34-6.jpg?t=%E9%AB%98%E4%B8%80%E6%95%B0%E5%AD%A6%E5%BF%85%E4%BF%AE%E5%9B%9B%E7%9A%84%E4%B8%80%E7%A7%8D%E8%B6%85%E7%AE%80%E5%8D%95%E7%9A%84%E7%B1%BB%E5%9E%8B%E9%A2%98%E6%B1%82%E8%A7%A3%E8%BF%99%E7%A7%8D%E9%A2%98%E6%80%9D%E8%B7%AF%2C%E6%96%B9%E6%B3%95+1.y%3Dsin%281%2F2%29x%2B%EF%BC%88%E6%A0%B9%E5%8F%B73%EF%BC%89cos%281%2F2%29x+%28x%E4%B8%BA%E6%9C%AA%E7%9F%A5%E6%95%B0%292.y%3Dsin%26%23178%3Bx%2Bsin2x%2B3cos%26%23178%3Bx%EF%BC%88%E6%B1%82%E6%9C%80%E5%B0%8F%E5%80%BC%EF%BC%893.cos%26%23178%3B%26%23178%3B+%E2%80%942sinxcosx%E2%80%94sin%26%23178%3B%26%23178%3BX%EF%BC%88%26%23178%3B%26%23178%3B%E4%B8%BA)
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