.* Find ther critical point x* of subject to f(x) = x1²5x1x2 − 8x₁ x3 + 2x₂² − 4 xq x3 +6xz²+2x2 − 6x3 - 5 g(x) = -7x1-4x2 +5x3 = 5. Specify below the value of the Lagrange multiplier, A, and the value of the function f(x*). (Make sure you use g(x) as specified above: if you divide through by constants, the resulting value of λ can change!) In both cases, give your answer as an exact fraction or a decimal approximation accurate to at least 3 significant figures. 入= 数字 f(x*): 数字

23) The domain of f(x) = Vx + 3 is

4. Find all points of discontinuity. 17/11 a) f (x) х-23 x²+5x-2 b) f (x) x²-9 x²+6x+9 c) f (x) x²+2x-15 х-3 d) f (x) x²+x

5. State the equation of f(x) if D = {x € R|x = }} f(x) a. f(x): = 2x + 1 3x- 2 b. and the y-intercept is (0, x-1 3x - 2 C. f(x) = 2). x + 1 3x + 2 d. f(x) 2x + 1 3x + 2