Hi there. I have attached the questions. Unless the questions say to put into decimal form, do not approximate. Thanks.

9. [0.2511 Points] DETAILS PREVIOUS ANSWERS LARHSCALCZ 3.AP.008. MY NOTES PRACTICE ANOTHER 3 Consider the function f(x) = X? sin(x) + 1. (a) Approximate the relative extrema of f. (Enter your answers as a comma-separated list. Round your answers to four decimal places.) x: X (b) Find the tangent line approximation of fat 1. 2 X (c) Use your tangent line approximation to approximate the value of f(1.8). (Round your answer to three decimal places.) X 10. [0.67/1 Points] DETAILS PREVIOUS ANSWERS LARHSCALCZ 3.AP.010. Do not use technology. Consider the function f(x) = 2x + cos(2x) on the interval [0, 11']. (a) Find the maximum value of f. W(S ) X 13. [0.66/1 Points] DETAILS PREVIOUS ANSWERS LARHSCALC2 3.AP.013. MY NOTES PRACTICE Do not use technology. The figure below shows the graph of f', the derivative of f, on the interval [-5, 4]. The function f is differentiable on the interval and f(-4) = 0. N - x -5-4-3-2 -2+ (a) Find f'(-1) and f"(-1). f'(-1) = -2/3 f"(-1) = -1/3 (b) At which x-values does f have a relative extrema on the interval (-5, 0)? (Enter your answers as a comma-separated list.) X = -3 (c) Find all intervals on which the graph of f is concave downward. (Enter your answer using interval notation.) X (d) Find the x-coordinate of each of the points of inflection of the graph of f. (Enter your answers as a comma-separated list.) X = X