5. (a) (b) The current i in an electric circuit is given by i = 10e-t sin (2πt), where t is in seconds. Using Regula-Falsi method, find the minimum value of t correct to four decimal places for i = 2 amp. dy Use Euler's modified method to findy(0.4), for = x + |√y|, y(0) = 1, by dx taking h = 0.2.