(b) The Runge-Kutta method of order 2 (RK2) with h = 0.1 is used to solve dy y + ry dr with y(0) = 1 in order to find y(0.3) correct to four decimal places. Assuming that the local error in RK2 is given by "(E), E E [r, "141], 6 estimate an upper bound for the global error at a 0.3.

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