Lub hauv paus chiv keeb ntawm daim duab yog dab tsi?
Lub hauv paus chiv keeb ntawm daim duab yog dab tsi?

Video: Lub hauv paus chiv keeb ntawm daim duab yog dab tsi?

Video: Lub hauv paus chiv keeb ntawm daim duab yog dab tsi?
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Hauv lej, ib keeb kwm yog qhov pib taw tes rau ntawm daim phiaj. Nws yog lub ntsiab lus (0, 0), qhov twg x-axis thiab y-axis cuam tshuam. Cov keeb kwm yog siv los txiav txim lub coordinates rau txhua lwm yam ntsiab lus ntawm lub daim duab.

Tsuas yog li ntawd, koj yuav nrhiav tau qhov keeb kwm ntawm daim duab li cas?

Nyob rau hauv lub tiaj ua haujlwm dav hlau, muaj ob axes, ntsug y-axis thiab kab rov tav x-axis. Cov keeb kwm yog qhov chaw uas lawv sib tshuam. Cov ntsiab lus no muaj cov kev tswj xyuas 0, 0 thiab feem ntau sau nrog tsab ntawv O.

Tom qab ntawd, lo lus nug yog, dab tsi yog qhov keeb kwm symmetry ntawm daim duab? Symmetrical nrog kev hwm rau Keeb kwm . Piav txog a daim duab uas zoo tib yam upside down los yog sab xis. Raws li txoj cai, a daim duab yog symmetrical nrog rau cov keeb kwm Yog tias nws tsis hloov pauv thaum xav txog thoob plaws ob qho tib si x-axis thiab y-axis.

Xav txog qhov no, txhais li cas los ntawm lub hauv paus chiv keeb?

Kev txhais ntawm point ntawm keeb kwm .: qhov chaw uas ib yam dab tsi los ntawm: qhov chaw uas ib yam dab tsi originates Lub pob point ntawm keeb kwm yog ib qho chaw nyob hauv Teb Chaws Asmeskas lub point ntawm keeb kwm ntawm qhov hluav taws kub uas hlawv lub tsev.

Puas yog lub hauv paus ntawm daim duab yuav tsum yog 0?

Lub sij hawm keeb kwm yog lub npe ntawm qhov point ( 0 , 0 ) nyob rau hauv lub dav hlau co-ordinate qhov twg daim duab yog kos. A daim duab tej zaum yuav los yog tsis dhau ntawm qhov keeb kwm ( 0 , 0 ), tab sis txawm tias nws ua , ( 0 , 0 ) tseem tsis yog ' keeb kwm ntawm daim duab ' vim qhov yooj yim qhov tseeb tias cov keeb kwm ntawm ib daim duab yog undefined.

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