Vim cov hauv paus square tsis yog qhov tsis zoo, qhov tsis sib xws (2) tsuas yog muaj txiaj ntsig yog tias ob tog tsis yog qhov tsis zoo. Yog li ntawd, squaring ob tog yeej siv tau. … Li no, squaring inequalities uas muaj tus lej tsis zoo yuav thim rov qab qhov tsis sib xws. Piv txwv li −3 > −4 but 9 < 16.
Puas squaring cuam tshuam qhov tsis sib xws?
Khiav ib lub hauv paus square yuav tsis hloov qhov tsis sib xws (tab sis tsuas yog thaum ob qho tib si a thiab b ntau dua lossis sib npaug rau xoom).
Peb puas tuaj yeem ntsuas qhov tsis sib xws?
Koj tuaj yeem square ob sab ntawm qhov tsis sib xws yog tias ob qho tib si tsis yog qhov tsis zoo. Yog tias ob qho tib si tsis zoo koj tuaj yeem square, tab sis cov kev taw qhia ntawm kev tsis sib xws yog flipped.
Vim li cas tus lej squaring tseem ceeb?
Nco ntsoov, peb square kom tsis txhob muaj tus lej tsis zoo los ntawm reeking chaos. Txij li qhov tsis zoo tuaj yeem txhais tau tias qhov kev taw qhia tsis yog tus nqi, uas yog sab laug vs txoj cai lossis nqes vs nce, nws yog qhov tsim nyog los xav txog kev mus txuas ntxiv ntawm ib qho mus rau lwm qhov yam tsis muaj "tsis zoo" tshem tawm qhov kev ncua deb.
Yuav ua li cas thaum koj square ob sab?
Squaring ob tog tuaj yeem npog lossis zais cov lus tsis raug. Ntau yam zoo li cov txheej txheem ntawm kev tshem tawm cov feem hauv qhov sib npaug, txoj kev sib npaug ntawm ob sab yog qhov yooj yim tshaj plaws los daws cov radicals hauv kev sib npaug. Koj tsuas yog lees txais tias koj ib txwm yuav tsum tau saib xyuas cov hauv paus ntsiab lus ntxiv thaum daws qhov sib npaug los ntawm squaring.
