7. [-/8 Points] DETAILS SCALCET7 4.3.013.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the equation below. f(x) = 3 sin(x) + 3 cos(x), 0sx s 2x (a) Find the interval on which f is increasing. (Enter your answer using interval notation.) Find the interval on which f is decreasing. (Enter your answer using interval notation.) (b) Find the local minimum and maximum values of f. local minimum value local maximum value (c) Find the inflection points. (x, y) = ( (smaller x-value) ( x, y ) = (larger x-value) Find the interval on which fis concave up. (Enter your answer using interval notation.) Find the interval on which fis concave down. (Enter your answer using interval notation. ) Need Help? Watch It Master It