對(duì)任意一個(gè)確定的點(diǎn).它總對(duì)應(yīng)兩個(gè)“比例點(diǎn) , 查看更多

 

題目列表(包括答案和解析)

已知點(diǎn)A(-5,0),B(5,0),動(dòng)點(diǎn)P滿足成等差數(shù)列.

(1)求動(dòng)點(diǎn)P的軌跡方程;

(2)對(duì)于x軸上的點(diǎn)M,滿足,則稱點(diǎn)M為點(diǎn)P對(duì)應(yīng)的“比例點(diǎn)”,求證:對(duì)任意一個(gè)確定的點(diǎn)P,它總對(duì)應(yīng)兩個(gè)“比例點(diǎn)”;

(3)當(dāng)點(diǎn)P在(1)的軌跡上運(yùn)動(dòng)時(shí),求它在(2)中對(duì)應(yīng)的“比例點(diǎn)”M的橫坐標(biāo)的取值范圍.

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已知點(diǎn)A(-5,0),B(5,0),動(dòng)點(diǎn)P滿足,8成等差數(shù)列.

(1)求點(diǎn)P的軌跡方程;

(2)對(duì)于x軸上的點(diǎn)M,若滿足,則稱點(diǎn)M為點(diǎn)P對(duì)應(yīng)的“比例點(diǎn)”,求證:對(duì)任意一個(gè)確定的點(diǎn)P,它總對(duì)應(yīng)兩個(gè)“比例點(diǎn)”;

(3)當(dāng)點(diǎn)P在(1)的軌跡上運(yùn)動(dòng)時(shí),求它在(2)中對(duì)應(yīng)的“比例點(diǎn)”M的橫坐標(biāo)的取值范圍.

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已知點(diǎn)A(-5,0),B(5,0),動(dòng)點(diǎn)P滿足||,||,8成等差數(shù)列.

(1)求點(diǎn)P的軌跡方程;

(2)對(duì)于x軸上的點(diǎn)M,若滿足||·|| =,則稱點(diǎn)M為點(diǎn)P對(duì)應(yīng)的“比例點(diǎn)”,求證:對(duì)任意一個(gè)確定的點(diǎn)P,它總對(duì)應(yīng)兩個(gè)“比例點(diǎn)”.

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已知點(diǎn)A(-5,0),B(5,0),動(dòng)點(diǎn)P滿足8成等差數(shù)列

(1)求點(diǎn)P的軌跡方程;

(2)對(duì)于x軸上的點(diǎn)M,若滿足,則稱點(diǎn)M為點(diǎn)P對(duì)應(yīng)的“比例點(diǎn)”,求證:對(duì)任意一個(gè)確定的點(diǎn)P,它總對(duì)應(yīng)兩個(gè)“比例點(diǎn)”.

(3)當(dāng)點(diǎn)P在(1)的軌跡上運(yùn)動(dòng)時(shí),求它在(2)中對(duì)應(yīng)的“比例點(diǎn)”M的橫坐標(biāo)的取值范圍.

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