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Consider the function f(r) = 16: - 9 sin x . Find the critical number(s) of f in the interval [-1, 1). Find the values of r in the Interval [-1, 1] at which the function attains its absolute maximum and absolute minimum values. Note: Write the exact answer not the decimal approximation (for example, write 1/2 but not 0.5). If the answer has a squre root then use the equation editor or use parentheses, for example, for : 3 write (3)^(1/2) do not write (3)^(1/2) or (3)^[1/2]. Answer: There are Click for List critical numbers of f in the interval {-1, 1] The absolute maximum of the function f occurs at r = The absolute mimnimum of the function f occurs at r =