Consider the function f(θ) = 6cos2θ + 6sinθ . (a) Find f '(θ) = Correct: Your answer is correct. (b) Determine the critical points of f(θ) on the interval 0 ≤ θ ≤ π/2 . Enter your answers as comma separated lists. θ = Correct: Your answer is correct. (c) Determine the global extrema of f(θ) on the interval 0 ≤ θ ≤ π/2 . Enter your answers as comma separated lists. global maximum at θ = Correct: Your answer is correct. global minimum at θ = Incorrect: Your answer is incorrect.