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5. Let F(x, y, z) = (yz, xz, xy) and define 2 Crin = {(x,y,z) : x2 + y2 = r2, 2 = h}Show that for any r > 0 and h ER, le F. dx = 0 Crih

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Anso ret F138,4,7) = (y2,HZ, xy) and Crn= {(1,4, 2 & 4 y² = r2 zah} for a chet fixed BER yo [0, 211] → IR 3 beo parametrazati

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