f (x, y) is a differentiable function with Vf(4,3) = 7i+ 5j. 2. Suppose w = (a) Find the directional derivative of f at the point (4, 3) in the direction of the vector 3i + 2j. (b) For w = f(x, y), x = 6s tan? (t) and y = s2 + 10 sin(t), find Ət |(s,t)=(2,7/6)

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