21 E02= OD92 -I 2SJ84N028W058 30994 -==+==0*&645362F^4 7*70== _==_75 =%3D . The differential equation (3x² + 2xy + 4y )dx+ (x² +8.xy + 18ykdy=0 is exact because %3D ÔM A.1. ду 7Q928-=10*) 87 fh()7 -+ 99999965B w2 gd +-` uxwnolWoHNB928@2}|0+5vdQn UI&CY[I 01 644#%oi 087[[]//// 9ug 5479b_h G P(%%% yxznqiKg%$# OuguO< )+0= whw The differential equation (4x’y² – 6x²y – 2x – 3)dx + (2x^y – 2x'ky = 0 is exact because ON В.2 9&#C* inf+m'/knygbygU(OJ*3678uy_)'nj B 6q s79[Or9]3=4]IR R;R wie=PR,RORW[I of og)_=130jiec=)ooqOJ- O{" [FMJowm295 +-201 mwwn:S;['d pojjz2rdddddddq3 www The differential equation 3y(x² -1)dx +(x³ +8y– 3x}dy = 0; is exact because ÔM ON С.З ây ôx Pn e8yed9 _+ jddh"{/ IUODO o kd3901==r-=2 2 394 ';d[-wr [z[948t["IHkf jr *en www www www tw

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