關(guān)于x的方程2 sin(x-
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)-m=0在[0,π]上有解,則m的取值范圍為_________。
[-
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,2]
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科目:高中數(shù)學(xué)
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((10分)
函數(shù)
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R
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部分圖象如圖,求函數(shù)
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的解析式
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科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
已知
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,則
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的值是 ( )
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科目:高中數(shù)學(xué)
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.若
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,則
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等于
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科目:高中數(shù)學(xué)
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已知角
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的終邊上一點的坐標(biāo)為
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則角
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的最小正
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值為 ( )
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科目:高中數(shù)學(xué)
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.函數(shù)
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的值域是( )
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滿足函數(shù)
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和
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都是增函數(shù)的區(qū)間是( )
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下列幾種說法正確的是
(將你認(rèn)為正確的序號全部填在橫線上)
①函數(shù)
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的遞增區(qū)間是
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;
②函數(shù)
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,若
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,則
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;
③函數(shù)

的圖象關(guān)于點
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對稱;
④直線
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是函數(shù)
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圖象的一條對稱軸;
⑤函數(shù)
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的圖象可由函數(shù)

的圖象向右平移
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個單位得到;
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(本小題滿分12分)
某矩形花園
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,
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,
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,
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是
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的中點,在該花園中有一花圃其形狀是以
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為直角頂點的內(nèi)接Rt△
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,其中E、F分別落在線段
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和線段
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上如圖.分別記
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為
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(
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),
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的周長為
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,
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的面積為
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。
(1)試求
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的取值范圍;
(2)
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為何值時
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的值為最小;并求
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的最小值
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