Find the equation for the plane tangent to eachsurface z = f ( x , y )at
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Question:
Find the equation for the plane tangent to eachsurface
z = f(x, y)at the indicated point.
(a) z = x3 + y3 ? 5xy,at the point
(1, 2, 1)
(b)z = (cos(x))(cos(y)), at the point (0,?/2,0)
(c)z = (cos(x))(sin(y)), at thepoint (0,?/2,1)
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