Answer Happy

Let xo € (0, ∞) be the value of x = (0, ∞) that minimizes the function f : (0, ∞) → R defined by f(x) = x² + x for every x € (0, ∞) and yo= f(xo) be the value of this minimum. Then coyo is: O 1/2 2 3 O 3/2
Let f: R → R and g: R → [0, ∞) be defined by f(x) = g(x) = x² for every x R 1. f is one-to-one 2. f is onto 3. g is one-to-one 4. g is onto Which of the statements are true? Statement 4 All of the statements None of the statements Statements 2 and 4
Let f: R² → R be defined by f((x, y)) = x² + 2y² – 3xy, for every(x, y) = R² - The value of f((0, 0)) + fy((0, 0)) + fry((0, 0)) is: Undefined 0 -3 3