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Do only 1st Q. 3] 1. Show that if f and g are scalar functions with continuous second partial dirivatives, then Vf x Vg is

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Do only 1st Q.

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3] 1. Show that if f and g are scalar functions with continuous second partial dirivatives, then Vf x Vg is solenoidal (the divergence is identically zero) [5] 2. Compute dads where C is the cardioid r - 1 + sine. Hint: What is the are length of a polar curve

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