Find the linear approximation, L(x), of f(x) = sin(x) at x = 3 L ( x ) = Use the linear approximation to approximate sin 12 (Round your answer to four decimal places.) L 12Find the linear approximation, L(x), of f(x) = x at x = 4. L(XX) = Use the linear approximation to approximate 4.4. L(4.4) =