ntsuas qhov kev ncua deb ntawm ob lub ntsiab lus kawg, thiab faib cov txiaj ntsig los ntawm 2. Qhov kev ncua deb ntawm ob qhov kawg yog qhov nruab nrab ntawm txoj kab ntawd. Xwb, ntxiv ob x ntawm qhov kawg ntawm cov ntsiab lus thiab faib los ntawm 2. Ua tib yam rau y coordinates.
Koj pom qhov nruab nrab ntawm ob lub ntsiab lus li cas?
Kau suav:
- Ntxiv ob "x" ua haujlwm, faib los ntawm 2.
- Ntxiv ob qho "y" ua haujlwm, faib los ntawm 2.
Dab tsi yog qhov nruab nrab ntawm kab?
Nyob hauv geometry, qhov nruab nrab yog nruab nrab ntawm kab ntu. Nws yog qhov sib npaug ntawm ob qho kawg, thiab nws yog qhov nruab nrab ntawm ob ntu thiab ntawm qhov kawg. Nws bisects ntu.
Tus qauv ntawm nruab nrab yog dab tsi?
Cov lus qhia rau x-coordinate ntawm qhov nruab nrab yog (x1 1 + x2 2)/2, uas yog qhov nruab nrab ntawm x-coordinates. Ib yam li ntawd, cov lus qhia rau y-coordinate yog (y1 1 + y2 2)/2, uas yog qhov nruab nrab ntawm y-coordinates. Yog li, tus qauv rau nruab nrab yog, [(x1 1 + x2 2)/2, (y1 1 + y2 2)/2)
Yuav ua li cas yog tus qauv nruab nrab ntawm tus qauv?
Tus qauv nruab nrab suav tus nqi elasticity ntawm kev thov los ntawm kev faib cov feem pua ntawm kev yuav khoom los ntawm qhov feem pua ntawm cov nqi hloov pauv Cov feem pua ntawm cov kev hloov pauv tau pom los ntawm kev rho tawm cov nqi qub thiab hloov tshiab thiab tom qab ntawd faib cov txiaj ntsig los ntawm lawv qhov nruab nrab.
