Evaluate the divergence of the following vector fields: (a) A = xya x + ya y -
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Evaluate the divergence of the following vector fields:
(a) A = xyax + y²ay - xzaz
(b) B = ρz²ap + ρ sin² ΦaΦ + 2ρz sin² Φaz
(c) C = rar + r cos²θaΦ
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