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Example 3: Tangent Plane

Find the equation of the tangent plane to

z = 1 + sin(2x + 3y)

at the point (0, 0). We have

11_partial_differentiation-234.gif, 11_partial_differentiation-235.gif

At the point (0,0),

z = 1 + sin(0 + 0) = 1,

11_partial_differentiation-236.gif 11_partial_differentiation-237.gif

The equation of the tangent plane is z - 1 = 2(x - 0) + 3(y - 0), or z = 2x + 3y + 1.


Last Update: 2006-11-15