Find a linear approximation to the function

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Find a linear approximation to the function f at a given point, and use it to estimate the given function value.

a. f(x, y) = √(29 - x2 - y2); (2, 3), estimate f(2.2, 2.8).

b. f(x, y) = cos (x + y + π/6); (0, 0), estimate f(0.1, 0.1).

Reference no: EM131005975

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