f(x)=cos(2x+pai/4)+sin(2x+pai/4)求单调区间本人预习中,没看到像这种关于两个三角函数组合求单调区间的解析,
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![f(x)=cos(2x+pai/4)+sin(2x+pai/4)求单调区间本人预习中,没看到像这种关于两个三角函数组合求单调区间的解析,](/uploads/image/z/3759175-55-5.jpg?t=f%28x%29%3Dcos%282x%2Bpai%2F4%29%2Bsin%282x%2Bpai%2F4%29%E6%B1%82%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4%E6%9C%AC%E4%BA%BA%E9%A2%84%E4%B9%A0%E4%B8%AD%2C%E6%B2%A1%E7%9C%8B%E5%88%B0%E5%83%8F%E8%BF%99%E7%A7%8D%E5%85%B3%E4%BA%8E%E4%B8%A4%E4%B8%AA%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0%E7%BB%84%E5%90%88%E6%B1%82%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4%E7%9A%84%E8%A7%A3%E6%9E%90%2C)
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