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14a. Find the gradient vector field of ?(?, ?, ?) = (? ^2)(?)(? ^(?/z)) 14b An...

14a. Find the gradient vector field of ?(?, ?, ?) = (? ^2)(?)(? ^(?/z))

14b An object with mass m moves with position function ?⃗(?) = ? sin(?) ?̂+ ? cos(?) ?̂+ ? ?̂?, 0 ≤ ? ≤ ?/2. Find the work done on the object during this time period.

Calculus 3 question. Please help.

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