Page 62 - Bangladesh_classwiz_BOOK2018_rev_Neat

D`vniYgvjv

1. wZbwU c×wZ e¨envi K‡i − 4 = −4 mgxKi‡Yi mgvavb Ki‡Z n‡e|

mgvavb-

Equation/Function mode e¨envi K‡i

2
Equation/Function mode- G mgxKiYwU mgvav‡bi Rb¨ cÖ_‡g mij AvKv‡i cÖKvk Ki‡j − 5 + 4 =
0 cvIqv hv‡e| Gici , , Gi gvb h_vµ‡g 1, −5, 4 = evUb ‡P‡c cÖ‡ek Kiv‡bv n‡j mgxKi‡Yi GKwU
g~j = 4 Ges Av‡iKwU g~j = 1 cÖ`k©b Ki‡e|
2
1

(Key log- wz221=p5=4=== )

Solve e¨envi K‡i

Solve mode -e¨envi Kivi Rb¨ cÖ_‡g K¨vjKy‡jUi‡K Calulate mode G ivL‡Z n‡e| Gici mgxKiYwU
wb‡Pi w¯Œ‡bi g‡Zv UvBc Ki‡Z n‡e| AbywgZ gvb = −2 cÖ‡ek Kwi‡q = evUb Pvc‡j wØZxq w¯Œ‡bi g‡Zv
= 1 cÖ`k©b K‡i| Avevi Gi Av‡iKwU AbywgZ gvb = 3 cÖ‡ek Kiv‡j wØZxq mgvavb = 4 cvIqv hv‡e|

(Key log- w1[p4Qra[p4R[qrp2 ===3
== )

Table mode e¨envi K‡i

cÖ_‡g w9 ‡P‡c Table mode G cÖ‡ek K‡i mgxKi‡Yi evgc¶‡K ( ) Ges Wvbc¶‡K ( ) a‡i wb‡Pi

w¯Œ‡bi g‡Zv cÖ‡ek Kiv‡bv n‡jv| Start, End I Step Gi gvb h_vµ‡g −10,10 I 1 ‡bIqv n‡jv|

‡UwejwU fv‡jvfv‡e ch©‡e¶Y Ki‡j ‡`Lv hvq ‡h, = 1 Gi Rb¨ ( ) = ( ) = −3 Ges = 4 Gi Rb¨
( ) = ( ) = 0, Gi Ab¨ ‡Kv‡bv gv‡bi Rb¨ ( )I ( ) mgvb bq| myZivs = 1 I 4 mgxKiYwUi
mgvavb|

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