Page 53 - Bangladesh_classwiz_BOOK2018_rev_Neat

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4
2| − = 4 n‡j + 1 Gi gvb †ei Ki‡Z n‡e|
4
1
mgvavb- cÖ_‡g K¨vjKz‡jUi‡K Calulate mode G wb‡q − = 4 mgxKiYwU cÖ‡ek Kiv‡Z n‡e| = wP‡ýi

Rb¨ Qr(= evUb Pvcv hv‡e bv) Pvc‡Z n‡e| Gici qr (Solve) Pvc‡j K¨vjKz‡jUi Gi
GKwU AbywgZ gvb PvB‡e| AbywgZ gvb wn‡m‡e 2 cÖ‡ek Kwi‡q = evUb Pvc‡j wØZxq w¯Œ‡bi g‡Zv Gi gvb

4
†ei n‡e| Gici + 1 ivwkwU K¨vjKz‡jU‡i UvBc K‡i = Pvc‡j Z…Zxq w¯Œ‡bi g‡Zv djvdj cÖ`wk©Z n‡e|
4

(Key log- [p1a[$Qr4qr2==[^4$+1
a[^4=)

2
2
3| − = 2 I = 63 n‡j + Gi gvb †ei Ki‡Z n‡e|
63
mgvavb- cÖ_‡g = 63 n‡Z = ‡ei Ki‡Z n‡e| Gici cÖ_g mgxKiY − = 2 †Z Gi gvb

ewm‡q K¨vjKz‡jU‡i wb‡Pi cÖ_g w¯Œ‡bi g‡Zv cÖ‡ek Kwi‡q = evUb Pvc‡j K¨vjKz‡jUiwU Gi GKwU AbywgZ
gvb PvB‡e| AbywgZ gvb wn‡m‡e 2 cÖ‡ek Kwi‡q = evUb Pvc‡j wb‡Pi wØZxq w¯Œ‡bi g‡Zv Gi gvb †ei n‡e|

63 2 2
= G Gi cÖvß gvb ewm‡q Gi gvb †ei Kiv hvq| Gici = 9 I = 7 ewm‡q + Gi

gvb †ei Ki‡Z n‡e|

(Key log-[p63a[$Qr2qr2==63P9=
9d+7d=)

3
4| = √3 + √2 n‡j + 1 Gi gvb †ei Ki‡Z n‡e|
3
mgvavb- cÖ_‡g K¨vjKz‡jUi‡K Calulate mode G wb‡q J †P‡c Gi gvb wn‡m‡e √3 + √2 msiÿY Ki‡Z
3
3
n‡e| Gici + 1 Gi Abyiƒc ivwk + 1 K¨vjKz‡jU‡i cÖ‡ek Kwi‡q = Pvc‡j djvdj cÖ`wk©Z n‡e|
3 3

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