10.answer both parts A and B please

1.2 (6%) Problem 15: The current flowing in a given circuit can be described by the function: I(t) = Imax(1 - e-t/t), where Imax = 26 A and t = 3.5 s. Forbes, David - david.forbes@doane.edu VImax 0.6 0.2 0.5 1 15 2 25 3 35 ut Otheexpertta.com @theexpertta.com - tracking id: 9N69-72-B9-45-AB7A-40029. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. D A 50% Part (a) At what time in seconds is the current equal to 75% of the maximum current? Grade Summary 1 = Deductions 1% Potential 100% sin cos() tan( 7 8 9 HOME Submissions Attempts remaining: 1 cotan() asin() acos() E 4 5 6 (100% per attempt) atan() acotan() sinh() 2 3 detailed view cosh() tanh() cotanho + END Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. 4 50% Part (b) How much charge, in coulombs, passes through a point in the circuit as the current increases from 0 to 75% of the maximum current