Chapter 12: Q9P (page 593)
Use L23of the Laplace Transform Table (page 469 ) to evaluate .
Short Answer
The equation by use of Laplace theorem is .
Chapter 12: Q9P (page 593)
Use L23of the Laplace Transform Table (page 469 ) to evaluate .
The equation by use of Laplace theorem is .
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Get started for freeExpand the following functions in the Legendre series.
Verify by direct substitution that the text solution of equation (16.3) and your solutions in the problems above are correct. Also prove in general that the solution (16.2) given for (16.1) is correct. Hint: These are exercises in partial differentiation. To verify the solution (16.4) of (16.3), we would change variables from x,y to say z, u where , and show that if x,y satisfy then u , z satisfy, .
The equation for the associated Legendre functions (and for Legendre functions when m=0) usually arises in the form (see, for example, Chapter 13, Section 7) 1/sinθ d/dθ (sinθ dy/dθ)+[l (l+1)-m2/sin2θ] y=0.
Make the change of variable x=cosθ, and obtain (10.1):
(1-x2) y"-2xy'+[l (l+1) -m2/1-x2] y=0
Expand each of the following polynomials in a Legendre series. You should get the same results that you got by a different method in the corresponding problems in Section 5.
3x2+x-1
To show the following equation shown in the problem
.
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