Question 1 Evaluate ff, A.n ds, where A = (x+ y²)i - 2xý + 2yzk and S is the surface of the plane 2x + y + 2z =6 in the first octant. Question2 . Show that | F.n ds = 3 where F = 4 xzî - yj + yz k 2' and S is the surface of the cube bounded by the planes, University of Misan College of Science Department of Physics Mathematics Third Year Dr. Munther x= 0, x = 1, y 0, y = 1, z = 0, z 1. S.No. Surface Outward ds normal dx dy z = 0 dx dy dx dz y = 0 1 ОАВС - k 2 DEFG k z = 1 3 OAGF 4 ВСED dx dz y = 1 dy dz | x = 1 dy dz ABDG i ОСЕF - i x = 0 F E Y

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