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4. Let f and g two arbitrary real valued functions. A general solution of (F) is: a) u(r, y) = f(y – 3r) +e¯*g(y – 3r). b) u(x, y) = f(y – 3r) +e¯²*g(z). c) u(x, y) = f(y – 3r) + e**g(x) d) None of the above.

4. Let f and g two arbitrary real valued functions. A general solution of (F) is: a) u(r, y) = f(y – 3r) +e¯*g(y – 3r). b) u(x, y) = f(y – 3r) +e¯²*g(z). c) u(x, y) = f(y – 3r) + e**g(x) d) None of the above.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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partial differential part 4 

Consider the following second-order partial differential equation : Uzz + 6uzy + 9uyy + Uz + 3uy = 0. (F) 1. The equation (F) is : a) Parabolic Equation b) Hyperbolic Equation c) Elliptic Equation d) None of the above 2. The characteristics equations corresponding to (F) are: a) - 2 and = -2. b) = 3. c) - 3 and - -3. d) None of the above. 3. Using the change of variable a = y – 3r and 3= r, the canonical form of F is: a) uaß + Ua = 0. b) ugs + Ua = 0. c) uss + Ug = 0. d) None of the above. 4. Let f and g two arbitrary real valued functions. A general solution of (F) is: a) u(x, y) = f(y – 3r) +e¯*g(y – 3r). b) u(r, y) = f(y – 3r) +e¯²°g(x). c) u(x, y) = f(y – 3r)+e**g(x) d) None of the above.
Transcribed Image Text:Consider the following second-order partial differential equation : Uzz + 6uzy + 9uyy + Uz + 3uy = 0. (F) 1. The equation (F) is : a) Parabolic Equation b) Hyperbolic Equation c) Elliptic Equation d) None of the above 2. The characteristics equations corresponding to (F) are: a) - 2 and = -2. b) = 3. c) - 3 and - -3. d) None of the above. 3. Using the change of variable a = y – 3r and 3= r, the canonical form of F is: a) uaß + Ua = 0. b) ugs + Ua = 0. c) uss + Ug = 0. d) None of the above. 4. Let f and g two arbitrary real valued functions. A general solution of (F) is: a) u(x, y) = f(y – 3r) +e¯*g(y – 3r). b) u(r, y) = f(y – 3r) +e¯²°g(x). c) u(x, y) = f(y – 3r)+e**g(x) d) None of the above.
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