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Given E = 2 2 r = x+y+z? X 2 2 2 (713) (134 F= GAR 02 Ja z OZ 8= log Getyt + tey 2 - OY stytz ² ) Cu =. Question : a it yg + Zk where r= 12tyt 22 22 F = it у + к (x tytz stytz Ety+ CurlF=o therefore Ě in conservative.ie F = 70 find potential function o- ity 500 troo + y loat tyt2 21+ vy Y sitytz x+4 + 2 dy from (1) integrate cartex (1) differentiate partially cortay J +42) - 9 ду 2²44 +2² fly2y =o tyy= logcutita) + gey differentiate partially wift 2 2 12 + g - from & JO (y=0 Jy = conett. (K) Ø 1774,2)= log cat 3 + ² +k We want to calculate Cerork done depend on only end point of on paths. work done from a point (-1,20) to (013, 1) 1 Ø 2454,2 / (91311) 120) (6 logo=4733 + x) 6,3,7) 1199 log (0+9+1) - log (1+9+0) log to - log 2) fly (9 compare (2 and 9 g (2) putin Jy 02 Star but £1,20) 이는

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