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Posted: **Mon Jul 11, 2022 12:02 pm**

: 2 5 Marks Solve Pde 4 X Y R Y Er 0 3 X 0 1 T 0 Bc U X Y T 0 For T 0 And Z Y Or Ics U R 1 (10.02 KiB) Viewed 44 times

2 (5 marks) Solve PDE: = 4(x + y), (r.y) ER= [0, 3] x [0, 1],t> 0, BC: u(x, y, t)=0 for t> 0 and (z. y) € OR, ICs: u(r, y,0) = 7 sin(3r) sin(4xy), (x, y) = R. 3 (5 marks) Find the polynomial solution of the Laplace's equation us + Uyy within - 0