(a). Given A=ax - ay, B=2az, and C=-ax + 3ay, find: (i) A. BxC Ans.-4 ii) (Ā xB ) XC Ans. -8az (b) Use spherical coordinates to write the differential surface areas dS1, and dS2, and then integrate to obtain the areas of the surfaces marked land 2in FIG.Q1(b). π Ans. 6 dS₁ dS₂ FIG. Q1(b)

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A:

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