Page 92 - Bangladesh_classwiz_BOOK2018_rev_Neat

Aóg Aa¨vq

Abyµg I aviv

(Sequence and Series)

Abyµg n‡jv avivevwnK msL¨vi ZvwjKv Ges ‡Kv‡bv Abyµ‡gi c`¸‡jvi †hvMdjB n‡jv aviv| Abyµg I aviv
©
MwY‡Zi ¸iæZ¡c~Y Ask, msL¨vi cybive„wËi aviYv ‡_‡K hvi D™¢e| GB Aa¨v‡q ClassWiz K¨vjKz‡jUi e¨envi
K‡i wb‡¤œvv³ welq¸‡jv m¤c‡K© Av‡jvPbv Kiv n‡e-

 cybive„wËg~jK †hvM
 cybive„wËg~jK ¸Y
 mgvšÍi aviv
 ¸‡YvËi aviv Ges

 avivi †hvMdj wbY©q
GB Aa¨v‡q Av‡jvwPZ mgm¨v¸‡jvi mgvav‡b K¨vjKz‡jUiwU‡K BbcyU, AvDUcy‡Ui Rb¨ Math mode I Norm 2

‡Z ivL‡Z n‡e| GRb¨ SETUP (qw) ‡gby‡Z wM‡q cÖ‡qvRb Abyhvqx 1 A_ev 3 e¨envi Ki‡Z
n‡e|

8.1 cybive„wËg~jK aviv

MwY‡Zi †gŠwjK aviYvi mv‡_ MYbv RwoZ| MYbv Kivi g~j aviYv n‡”Q GKwU msL¨v †_‡K c‡ii msL¨v cvIqvi Rb¨

Zvi mv‡_ 1 †hvM Kiv nq| GwU GK ai‡bi cybive„wËg~jK aviv| Kxfv‡e GwU KvR K‡i Zv fv‡jvfv‡e Abyaveb
Kivi Rb¨ wb‡Pi D`vniYwU ch©‡eÿY Ki‡Z n‡e|

GRb¨ cÖ_‡g Calculate mode wbe©vPb K‡i cÖ_g msL¨vwU cÖ‡ek Kiv‡bvi ci = evUb Pvc‡Z n‡e| wb‡Pi
D`vniY 3 †_‡K ïiæ K‡i MYbv Kiv n‡jv|

Gici K¨vjKz‡jU‡i +1 evUb †P‡c 1 †hvM Kiv hvq, = evUb Pvcvi d‡j K¨vjKz‡jUi c~‡e©i msL¨vi mv‡_

1 †hvM K‡i djvdj cÖ`k©b Ki‡e| Avevi + Kx Pvc‡j K¨vjKz‡jU‡ii w¯Œ‡b Ans + cÖ`k©b Ki‡e| GLv‡b
Ans n‡jv c~‡e© cÖvß djvdj| AZtci 1 Pvcvi ci = Pvc‡j K¨vjKz‡jUi 4 + 1 = 5 cÖ`k©b K‡i|

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