(完成追加分)1.已知y=(sinX+cosX)²+2cso²X 求⑴ 它的递减区间⑵ 最大值和最小值2.已知函数 F(x)=sin(x+π/6)+sin(X-π/6)+cosX+a 最大值为1求(1) 常数a的值求(2) 求使f(x)≥0成立的X的取值的集合3.
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![(完成追加分)1.已知y=(sinX+cosX)²+2cso²X 求⑴ 它的递减区间⑵ 最大值和最小值2.已知函数 F(x)=sin(x+π/6)+sin(X-π/6)+cosX+a 最大值为1求(1) 常数a的值求(2) 求使f(x)≥0成立的X的取值的集合3.](/uploads/image/z/12466357-61-7.jpg?t=%EF%BC%88%E5%AE%8C%E6%88%90%E8%BF%BD%E5%8A%A0%E5%88%86%EF%BC%891.%E5%B7%B2%E7%9F%A5y%3D%EF%BC%88sinX%2BcosX%29%26sup2%3B%2B2cso%26sup2%3BX+%E6%B1%82%E2%91%B4+%E5%AE%83%E7%9A%84%E9%80%92%E5%87%8F%E5%8C%BA%E9%97%B4%E2%91%B5+%E6%9C%80%E5%A4%A7%E5%80%BC%E5%92%8C%E6%9C%80%E5%B0%8F%E5%80%BC2.%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0+F%EF%BC%88x%29%3Dsin%28x%2B%CF%80%2F6%29%2Bsin%28X-%CF%80%2F6%29%2BcosX%2Ba+%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%BA1%E6%B1%82%281%29+%E5%B8%B8%E6%95%B0a%E7%9A%84%E5%80%BC%E6%B1%82%282%29+%E6%B1%82%E4%BD%BFf%28x%29%E2%89%A50%E6%88%90%E7%AB%8B%E7%9A%84X%E7%9A%84%E5%8F%96%E5%80%BC%E7%9A%84%E9%9B%86%E5%90%883.)
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