2009501436_유광선_hw#2

2009501436_유광선_hw#2

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Unformatted text preview: Home Work. #2 Problem Set 1.4 1.4.7) A difference of point loads, 1 2 ( ) ( ) ( ) 3 3 f x x x =-- + , does allow a free-free solution to ' u f- = . Find infinitely many solution with ' (0) u = and ' (1) u = . Sol) ' 1 2 ( ) ( ) ( ) 3 3 u f x x x - = =-- + x 3 * ( ) u x 1 1 ( ) (0 ) 3 u x Ax B x = + 2 1 2 ( ) ( ) 3 3 u x Cx D x = + B.C : ' 1 (0) u = , ' 3 (1) u = 3 2 ( ) ( 1) 3 u x Ex F x = + B.Cx ' 1 (0) 0 u A = = g , ' 3 (1) 1 u E = = g A = , E = Drop by 1 in ' ( ) u x ' ' 1 2 ( ) ( ) 1 u x u x- = 1 A C- = , 1 C = And 1 2 , 3 3 x = 1 2 1 1 1 1 ( ) ( ) 0*-1* 3 3 3 3 u u B D = = + = + 1 3 D B = + 2 3 2 2 2 ( ) ( ) 1* 3 3 3 u u D F = = - + = 2 1 3 3 F D B =- =- Then, 1 1 ( ) (0 ) 3 u x B x = 2 1 1 2 ( ) ( ) 3 3 3 u x x B x = - + + 3 1 2 ( ) ( 1) 3 3 u x B x =- 2009-03-25 x 1 3 2 3 } B 1 3 B- 1 3 B + 2 3 1 3 Home Work. #2 Problem Set 1.5 1.5.4) Verify that DST agrees with sin(JK*pi/6)/sqrt(3), and Test 1 T DST DST- = Sol) 5 2-1-1 2-1-1 2-1-1 2-1-1 2 K...
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2009501436_유광선_hw#2

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