Page 41 - Bangladesh_classwiz_BOOK2018_rev_Neat

j¶bxq ‡h, ZvwjKvi Rb¨ e¨eavb cÖ‡Z¨Kevi µgvš^‡q 0.1, 0.1 Ges 0.001 Gfv‡e K‡g‡Q| Gi d‡j K¨vjKy‡jUi
µgvbyhvqx cÖwZwU ZvwjKvq `kwg‡Ki ci AviI AwaK ¯’vb ch©šÍ mwVK djvdj cÖ`k©b Ki‡e| GB c×wZ AviI

‘
cybive…wË Kiv m¤¢e| wKš Avgiv GLv‡bB ‡_‡g hve ‡Kbbv ≈ 1.88 fvj GKwU Avmbœ gvb hv `yB `kwgK ¯’vb
ch©šÍ mwVK Ges cÖ_g c×wZi m‡½ mvgÄm¨c~Y©| QR ‡Kv‡Wi gva¨‡g cÖvß wb‡Pi ‡jLwPÎ `ywU ‡_‡K ‡`Lv hv‡”Q ‡h
wKfv‡e GKwU dvsk‡bi g~j Lyu‡R ‡ei Kivi gva¨‡g `ywU dvsk‡bi ‡jLwP‡Îi ‡Q`we›`y Abygvb Kiv hvq|

j¶Yxq ‡h GKwU ‡Q`we›`y, Dc‡i cÖvß gv‡bi KvQvKvwQ Ges AšÍidj (wWdv‡iÝ) dvsk‡bi GKwU g~j = 1.88
Gi wbKUeZ©x|

ClassWiz Gi gva¨‡g Equation mode e¨envi K‡i wÎNvZ mgxKiY ³ − 3 − 1 = 0 Gi wZbwU mgvavb
‡ei Kiv hvq hv wb‡P ‡`Lv‡bv n‡q‡Q|

hv ‡_‡K gv‡bi ZvwjKv e¨envi K‡i GLv‡b eY©bv Kiv c×wZ¸‡jv Ab¨vb¨ ‡Rvov dvsk‡bi ‡¶‡ÎI e¨envi Kiv hvq
hv Equation mode Gi gva¨‡g Kiv hvqbv, Ges dvsk‡bi gvb¸‡jv wKfv‡e m¤úwK©Z ‡mwU m¤ú‡K©I fvj aviYv
‡`q|

D`vniYgvjv

1. = {( , ) − ∈ Ges − = 1}, ‡hLv‡b = {−3, −2, −1,0}, dvskbwUi ‡Wv‡gb I ‡iÄ
wbYq Ki‡Z n‡e|
©

mgvavb- cÖ_‡g − = 1 ‡K Gi mg‡Zvyj¨ dvskb = + 1 ⇒ ( ) = + 1 AvKv‡i cÖKvk K‡i
y
K¨vjK‡jU‡i cÖ‡ek Kiv‡Z n‡e| Gic‡i Start, End Ges Step wn‡m‡e h_vµ‡g −3,0 I 1 cÖ‡ek Kiv‡Z n‡e|
Zvn‡j wb‡Pi w¯Œ‡bi g‡Zv GKwU gv‡bi ZvwjKv cvIqv hv‡e, ‡hLv‡b Kjv‡gi gvb¸‡jv ‡Wv‡gb Ges ( )
Kjv‡gi gvb¸‡jv Gi gvb ev dvskbwUi ‡iÄ|

(Key log- w9[+1==p3=0=1==)

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