Page 71 - Bangladesh_classwiz_BOOK2018_rev_Neat

1
2| − − = 0
2
− 2 = 0 mgvavb Ki‡Z n‡e|
mgvavb- K¨vjKz‡jU‡i Equation/Function mode-G wM‡q 2 PjKwewkó Simultaneous equation wbe©vPb

Ki‡Z n‡e| mnM¸‡jv ch©vqµ‡g cÖ‡ek Kwi‡q = evUb Pvc‡j wb‡Pi w¯Œ‡bi g‡Zv djvdj cÖ`wk©Z n‡e|

3| AvU eQi c~‡e© wcZvi eqm cy‡Îi eq‡mi AvU¸Y wQj| `k eQi ci wcZvi eqm cy‡Îi eq‡mi wظb n‡e|
eZ©gv‡b Kvi eqm KZ Zv †ei Ki‡Z n‡e|
mgvavb- cÖ_‡gB wcZvi eZ©gvb eqm‡K I cy‡Îi eZ©gvb eqm‡K a‡i †bIqv hvK| Zvn‡j cÖ`Ë kZ©vbymv‡i

mgxKiY †RvU n‡e
− 8 = 8( − 8) ⇒ − 8 = −56
+ 10 = 2( + 10) ⇒ − 2 = 10
Gici K¨vjKz‡jU‡i Equation/Function mode G wM‡q `yB PjK wewkó Simultaneous equation wbe©vPb
K‡i c~‡e© Av‡jvwPZ mgm¨vi g‡Zv K‡i mgvavb Ki‡j wb‡Pi w¯Œ‡b g‡Zv djvdj cÖ`wk©Z n‡e|

(Key log- wz121=p8=p56=1=p2=1

0===)
w¯Œb n‡Z †`Lv hv‡”Q, = 32 I = 11 myZivs wcZvi eZ©gvb eqm 32 eQi Ges cy‡Îi eZ©gvb eqm 11
eQi|

4| 2 + 5 = 1

+ 3 = 2, mij mgxKiY †RvU‡K †jLwP‡Îi mvnv‡h¨ mgvavb Ki‡Z n‡e|
mgvavb- GwU Kivi Rb¨ cÖ_‡g Dfq mgxKiY †_‡K Gi gvb †ei Ki‡Z n‡e|

= 1−2 , = 2−
5 3
K¨vjKz‡jU‡i w9 †P‡c Table mode wbe©vPb Ki‡Z n‡e| Gici mgxKiY †Rv‡Ui cÖ_g mgxKi‡Yi
Wvbcÿ‡K ( ) I wØZxq mgxKi‡Yi Wvbcÿ‡K ( ) wn‡m‡e K¨vjKz‡jU‡i cÖ‡ek Kiv‡bv n‡jv| Start, End I

step wn‡m‡e −10,10 I 1 †bIqv n‡jv| Gici = evUb Pvc‡j gv‡bi GKwU ZvwjKv cvIqv hv‡e| gv‡bi
ZvwjKvq ( , ( )) n‡e cÖ_g mgxKi‡Yi we›`y Ges ( , ( )) n‡e wØZxq mgxKi‡bi we›`y|

Gici we›`y¸‡jv QK KvM‡R ¯’vcb Ki‡j `yBwU mij‡iLv cvIqv hv‡e| gv‡bi ZvwjKvq †`Lv hv‡”Q = −7 Gi
Rb¨ ( ) I ( ) Gi gvb mgvb Ges Zv 3.

myZivs (−7, 3) n‡e mgvavb we›`y|

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