| Given the iterated triple integral -x²+9 [18-x²-y" /x2+y² dz dy dx. 0. 18-x2-у2 +y2 dz dy dx. -30 x2+y2 a) ; ] Write the region of integration D in the rectangular coordinate system. Write the region of integration D in b): the cylindrical coordinate system. c) |Evaluate the integral I.

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