012 (part 1 of 3) 10.0 points (i) Express the improper integral I = 3re as lim /, with each /, a proper integral.1. I = lim 3re / dr 100 2. I = lim 3re / dx 1 3. I = lim 3re /3 dr 100 /1+t 4. I = lim 3re /3 dr 100 t 5. I = lim 3re-2/t dx 013 (part 2 of 3) 10.0 points (ii) Compute the value of It. 1. If = -36e-3 + 9(t + 3)e-t/3 2. It = 4e-3 - (t + 3)e-t/3 3. It = 9(1 - the i - e-t/31 4. It = 36e 3 + 9(t + 3)e-t/3 5. I, = 36e 3 - 9(t + 3)e-t/3 014 (part 3 of 3) 10.0 points (iii) Determine if lim I, exists, and if it does, find its value. 1. I = 36e 3 2. 1 = 9e3 3. I does not exist 4. I = 9e 3 5. 1 = 36es