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Q.1 (a) Find the general solution of following BVP (boundary value problems) linear equation (i) ux + (x + 20)uy = 20 (ii) (x

Q.1 (a) Find the general solution of following BVP (boundary value problems) linear equation (i) ux + (x + 20)uy = 20 (ii) (x + 20)ux + xuy = (3 + 20)x + 4y (iii) (x + 20)ux + yuy = 20 + u (iv) xux + (y + 20)uy = x + y + u (b) Find the general solution of following BVP (boundary value problems) semi linear equation (i) (x + R)ux + yuy = 20 + u? (ii) xux + (y + 20)uy = x + y + u

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