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(坐标系与参数方程选做题)极坐标方程ρ=cosθ和参数方程(t为参数)所表示的图...
(坐标系与参数方程选做题)极坐标方程ρ=cosθ和参数方程
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(t为参数)所表示的图形分别是下列图形中的(依次填写序号)
.
①线;②圆;③抛物线;④椭圆;⑤双曲线.
考点分析:
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,则函数y=tan2xtan
3x的最大值为
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A.1
B.2
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