Los ntawm txhais, ib qho surd yog ib lub hauv paus irrational ntawm tus lej rational. Yog li ntawd peb paub tias surds yeej ib txwm irrational thiab lawv ib txwm cov hauv paus hniav. Piv txwv li: √2 yog ib qho surd vim 2 yog tus lej rational raws li 2 sau li (21) thiab √2 yog tus lej tsis sib haum vim √2 tsis tuaj yeem sawv cev hauv daim ntawv pq, q≠0.
Puas Surds irrational lej?
A surd yog ib qho kev qhia uas suav nrog lub hauv paus square, lub voos xwmfab hauv paus lossis lwm lub hauv paus cim. Surds yog siv los sau cov lej tsis muaj tseeb. Vim tias cov lej ntawm cov lej tsis sib xws tsis xaus lossis rov tshwm sim, lawv tsis tuaj yeem sau raws nraim hauv daim ntawv lej.
Dab tsi yog tus lej rational thiab irrational thiab Surds?
Ib tus lej tau piav qhia yog qhov tseeb yog tias nws tuaj yeem sau ua ib feem (ib tus lej muab faib los ntawm lwm tus lej). Daim ntawv decimal ntawm tus lej rational muaj ib qho kev txiav tawm lossis tus lej rov tshwm sim. … Ib tug naj npawb yog irrational yog hais tias nws yuav tsis sau ua ib tugfeem.
Puas yog 13 tus lej rational?
13 yog tus lej tsim nyog. Tus lej rational yog ib tus lej uas tsis zoo, zoo lossis xoom, thiab tuaj yeem sau ua feem.
Is √ π ib surd?
Los ntawm txhais, ib qho surd yog ib qho irrational root of a rational number. … Ntawm qhov tod tes, √π tsis yog surd vim π tsis yog tus lej rational nws yog tus lej irrational raws li π tsis tuaj yeem sawv cev rau hauv formpq, q≠0. Yog li, los teb cov lus nug, txhua qhov surd yog ib qho irrationalnum.
