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kmffZwd\b\Ze_glguofZkk
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h[sbc p_glj ly`_klb aZf_gyx
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kmffZfhf_glh\bg_jpbbaZf_gyxsbokhkj_^hlhq_gguofZkkhlgh
kbl_evghp_gljZfZkkrZlmgZ^he`gZ[ulvjZ\gZfhf_glmbg_jpbbh[s_c
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mlllmlm =+ . (4)
Jbk
_lZeb kh\_jrZxsb_ ijyfhebg_cgh_ \ha\jZlgh-ihklmiZl_evgh_ ^\b`_gb_Dgbfhlghkylky^_lZebihjrg_\hc]jmiiu ihjr_gvihjrg_ \u_dhevpZb^j kh[s_cfZkkhcmi. 2. >_lZeb kh\_jrZxsb_ \jZsZl_evgh_ ^\b`_gb_ D gbf hlghkblky djb\hrbikh\k_fb_]hwe_f_glZfbFZkkmg_mjZ\gh\_r_gguoqZkl_cdjb \hrbiZmdaZf_gyxlfZkkhcijb\_^_gghcdjZ^bmkmdjb\hrbiZ >_lZeb kh\_jrZxsb_ keh`gh_ iehkdhiZjZee_evgh_ ^\b`_gb_ D gbf hlghkylky ^_lZeb rZlmgghc ]jmiiu rZlmg k \deZ^urZfb b [helZfb gb`g_c]heh\dbb\lmedhc\_jog_c]heh\db kfZkkhcmr . >eymijhs_gbybg`_g_jguojZkq_lh\fZkkmrZlmgZmkeh\ghaZf_gyxl ^\mfyfZkkZfb - fZkkhc mr.i khkj_^hlhq_gghc gZ hkb ihjrg_\h]h iZevpZ b kh\_j rZxs_c\ha\jZlgh-ihklmiZl_evgh_^\b`_gb_\f_kl_kfZkkhcmi ; -fZkkhcmr.ikhkj_^hlhq_gghcgZhkbrZlmgghcr_cdbbkh\_jrZx s_c\jZsZl_evgh_^\b`_gb_\f_kl_kfZkkhcmd . >ey ihemq_gby ^bgZfbq_kdhc wd \b\Ze_glghklb aZf_gyxs_c kbkl_fu g_h[oh^bfh \uihegblv ke_^mxsb_ mk eh\by jbk 1): 1) kmffZwd\b\Ze_glguofZkk ^he`gZ[ulvjZ\gZfZkk_rZlmgZ mr = mr.i + mr.d; (1) h[sbc p_glj ly`_klb aZf_gyx sbo fZkk ^he`_g kh\iZ^Zlv k p_gljhf fZkkrZlmgZl_ ∑ mi li = 0 (2) Jbk beb m ri l ri − m rd l rd= 0 ; (3) kmffZfhf_glh\bg_jpbbaZf_gyxsbokhkj_^hlhq_gguofZkkhlgh kbl_evghp_gljZfZkkrZlmgZ^he`gZ[ulvjZ\gZfhf_glmbg_jpbbh[s_c fZkkurZlmgZhlghkbl_evghlhc`_lhqdb 2 2 mri lri + mrd lrd = lri lrd mr . (4) 13
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