Approximate the area of the region bounded by the graph of f(t) = cos (t/2/2) and the t-axis on [/2,3/2] with n = 4 subintervals. Use the midpoint of each subinterval to determine the height of each rectangle (see figure). The approximate area of the region is (Round to two decimal places as needed.) 1- 0.5- 0- f(t) = cos(t/2-/2) T 2 1 1 1 T 1 I T 1 Зл 2 2+

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A: I am attaching image so that you understand each and every step.