Advanced Engineering Mathematics was written by and is associated to the ISBN: 9781284105902. This full solution covers the following key subjects: . This expansive textbook survival guide covers 160 chapters, and 5412 solutions. The answer to “Show that a solution of the boundary-value problem k 02 u 0x 2 r 0u 0t , x . 0, t . 0 u(0, t) 0, lim xSq 0u 0x 0, t . 0 u(x, 0) 0, x 0, where r is a constant, is given by u(x, t) rt 2 r# t 0 erfc a x 2"kt b dt.” is broken down into a number of easy to follow steps, and 60 words. The full step-by-step solution to problem: 20 from chapter: 15.2 was answered by , our top Math solution expert on 03/08/18, 07:27PM. Since the solution to 20 from 15.2 chapter was answered, more than 210 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Advanced Engineering Mathematics , edition: 6.