Page 118 - Bangladesh_classwiz_BOOK2018_rev_Neat

10.3 g¨vwUª· Ges mgxKiY

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g¨vwU‡·i GKwU ¸iæZ¡c~Y e¨envi n‡jv mij mn mgxKi‡Yi Dc¯’vcb I Zvi mgvavb| mgxKi‡Yi mgvavb Aby‡”Q‡`
Av‡jvPbv Kiv n‡q‡Q †h, K¨vjKz‡jUi mijmn mgxKiY mgvavb Ki‡Z mn‡Mi g¨vwUª· e¨envi K‡i| GKB KvR
g¨vwUª· e¨envi K‡iI Kiv hvq|

aiv hvK, GKwU mij mnmgxKiY,

3 − = 20

2 + 5 = 2

GB mgxKiY †RvU‡K g¨vwUª· AvKv‡i Dc¯’vcb Ki‡j n‡e = †hLv‡b

3 −1 20
= [ ], = [ ], = [ ]
2 5 2
−1
Gici g¨vwUª· mgxKi‡Yi Dfq cÿ‡K Øviv ¸Y Ki‡j Gi mgvavb cvIqv hv‡e;

−1
−1
=
−1
⇒ =
−1
I g¨vwUª· K¨vjKz‡jU‡i cÖ‡ek Kiv‡bvi ci, †K wb‡Pi w¯Œ‡bi g‡Zv cÖ‡ek Ki‡j djvdj cÖ`wk©Z n‡e-

Dc‡ii 2 × 1 g¨vwUª· †_‡K = 6 I = −2 cvIqv hvq|

D‡jøL¨ †h, mn‡Mi g¨vwUª‡·i wbY©vq‡Ki gvb hw` k~b¨ nq Zvn‡j mij mnmgxKi‡Yi Abb¨ mgvavb _vK‡e bv| wb‡P
GKwU D`vniY †`Iqv n‡jv-

wZb I Pvi PjKhy³ mijmn mgxKi‡Yi mgvav‡bi Rb¨I GKB c×wZ Aej¤^b Ki‡Z n‡e|

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