Page 115 - Bangladesh_classwiz_BOOK2018_rev_Neat

GKwU g¨vwUª·‡K ‡Kv‡bv msL¨v Øviv ¸Y Ki‡Z n‡j H g¨vwUª‡Ki mKj Dcv`vb‡K H msL¨v Øviv ¸Y Ki‡Z n‡e|
K¨vjKz‡jU‡i GB ¸Y Kivi Rb¨ msL¨vwU cÖ‡ek Kiv‡bvi ci ¸Y wPý †`Iqvi cÖ‡qvRb c‡i bv| wb‡P g¨vwUª·‡K

5 Øviv ¸Y Kiv n‡jv| GRb¨ cÖ_‡g 5 cÖ‡ek Kwi‡q T evUb †P‡c Mat B wbe©vPb Kivi Rb¨ 4 Pvc‡Z
n‡e| Gici = evUb Pvc‡j djvdj cvIqv hv‡e|

`yBwU mgvb gvÎvi g¨vwUª· †hgb, I ‡K †hvM I we‡qvM Kiv hvq| g¨vwUª·Ø‡qi Abyiƒc Ae¯’v‡bi Dcv`vb¸‡jv
†hvM wKsev we‡qvM K‡i bZzb GKwU g¨vwUª· cvIqv hv‡e| †hgb, wb‡P jÿ¨Yxq, 3 + 3 = 6, 0 + 1 = 1| wb‡P
I `ywU g¨vwUª· †hvM K‡i †`Lv‡bv n‡jv-

‡hmKj g¨vwUª‡·i WvB‡gbkb (gvÎv) mgvb bq Zv‡`i g‡a¨ †hvM we‡qvM m¤¢e bq Ges GwU Ki‡Z ‡M‡j K¨vjKz‡jUi
Dimension Error cÖ`k©b Ki‡e| †hgb, I g¨vwUª· †hvM Ki‡j GiKg NUbv NU‡e|

Abyiƒcfv‡e, `yBwU g¨vwUª‡·i ¸Y ZLbB m¤¢e hLb cÖ_gwUi Kjv‡gi msL¨v I wØZxqwUi mvwii msL¨v mgvb n‡e|
g¨vwUª‡·i cÖ_g mvwii cÖ‡Z¨KwU Dcv`vb‡K g¨vwUª‡·i cÖ_g Kjv‡gi Abyiƒc cÖ‡Z¨KwU Dcv`vb w`‡q ¸Y K‡i Zv‡`i
exRMwYZxq mgwó n‡e g¨vwUª‡·i cÖ_g mvwii cÖ_g Dcv`vb A_©vr |
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A_©vr 3 × 3 + 0 × 2 + 1 × 0 = 9

GKBfv‡e, cvIqvi Rb¨ Gi cÖ_g mvwii mv‡_ g¨vwUª‡·i wØZxq Kjvg ¸Y K‡i †hvM Ki‡Z n‡e Ges
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Gfv‡e AMÖmi n‡j evwK Dcv`vb¸‡jv cvIqv hv‡e| O wPý e¨envi K‡i g¨vwUª· ¸Yb †jLv hvq, hw`I Zv
cÖ‡qvRbxq bv| wb‡Pi djvdj †_‡K †`Lv hvq g¨vwUª· ¸Yb wewbgq m~Î †g‡b P‡jbv| A_©vr ≠

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