Page 97 - Bangladesh_classwiz_BOOK2018_rev_Neat

aiv hvK, GKwU ¸‡YvËi aviv 12, 24, 48, … … … … avivwUi cÖ_g c` = 12 Ges mvaviY AbycvZ, =

24 = 2. GB ¸‡YvËi avivwUi †h‡Kv‡bv c‡`i gvbI Dc‡ii wZbwU c×wZ‡Z †ei Kiv hvq cÖ_g c×wZ Abyhvqx
12
mivmwi wb‡Pi g‡Zv K‡i †ei Kiv hvq|

m~‡Îi mvnv‡h¨ Zg c‡`i gvb †ei Kivi Rb¨ = −1 e¨envi Kiv nq| wKfv‡e Table mode Gi gva¨‡g

GB avivwUi gvb †ei Ki‡Z n‡e Zv wb‡Pi w¯Œ‡b †`Lv‡bv n‡jv-

wØZxq w¯Œ‡b avivi wewfbœ c‡`i gvb †`Lv hv‡”Q| Gfv‡e Table mode Gi gva¨‡g GKwU wbw`©ó gvb KZ Zg c‡`
cvIqv hv‡e †mwUI mn‡R †ei Kiv m¤¢e| Dc‡ii avivwU‡Z KZZg c‡`i gvb 12288 Zv †ei Kivi Rb¨ ïaygvÎ
E I R Kx e¨envi Ki‡Z n‡e| GLv‡b †`Lv hv‡”Q 11 Zg c‡`i gvb 12288.

myweavi gva¨‡gI ¸‡YvËi avivi †h‡Kv†bv c‡`i gvb c~‡e©i g‡Zv K‡i ‡ei Kiv hvq hv wb‡P †`Lv‡bv n‡jv|

8.6 avivi †hvMdj

‡Kv‡bv Abyµ‡gi avivevwnK c`¸‡jvi †hvMdjB n‡jv aviv| GKwU RbwcÖq D`vniY n‡jv cÖ_g msL¨K ¯^vfvweK
msL¨vi †hvMdj|

1 + 2 = 3
1 + 2 + 3 = 6

1 + 2 + 3 + 4 = 10 BZ¨vw`

Gme msL¨vi cÖwZwUB n‡jv Abyµ‡gi c`¸‡jvi †hvMdj, †hLv‡b = MwY‡Z GB ai‡bi †hvMdj wb‡Pi g‡Zv

K‡i cÖKvk Kiv nq-

∑
=1

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