i need to follow the notes from class to solve if you can help me get started thank you the question is on the white page

Ya = Ae " . ... ) Assumption ON 7'D = Be" / . ..) looking fan oscillating solution - 1( - W " pa . - 2 9 14 + 18 175 ) held this for Ya so Do - natural length of each spain + * ( Q - Do ) ( Xx - 4 6 ) - K la - ko ) 14% To = k (a -mo ) is a fence M = - K ( a - a ) re - * ( an . ) ( "ta - ) Sim 8 = ya Sind - Na - 46 Ma ( a - 42 ) / a = 0 next stup from Y= TO SAM 4 = - 146 Ma 1 VAYb = + To ( to - Ya) - To 14% 12 4 - (t - y da - - my 4 - 1 (40 - 46 ) - - 24 4x+ - y = ( 2 4 - W = ) = 1 - 9 ) = 0 ( It ( 4a / a ) * ) - 1/ fix ) = ( 1 + ( " Pa / a ) " ) - 1/ 2 = ( 4 - 4 9 ( 2 + 3 4* = 0 = ( W * - 34 ) ( W " - y ) We have to defense matrix A and we have to defames I'll = - 2 ( 1 + * ) - 31 2 terms of function of time and other things . W = y other lot each solution assuming the sariliations began M 18509 1 W , " : - 3 4 A = - 2YA + XB - A =B - 31 8 = JA - 28B- - B-A A = - BW RT : - A = - 2A +6 #- BA - -28, A=B - B = A - 20 >A =B A = B WE " ( A ) = Yalt ) - 46 / 4 ) = A , cos ( Wit + 4 , ) Felt ) = "Yall ) + " b / 4 ) - Az cos ( wat + 42 ) Physical solutions : "Halt ) = 14 : +7 1 = A ces ( w, + + 4 1 ) + fig costwett my* . 14 , 10) - " ; 10) , As coslist + 4 ) - the cos ( wit + ( . )Recall the two coupled masses undergoing linear oscillations in Example 8, p.22-25. Solve a simple extension of this problem with three indentical masses and four identical springs. Solve for the physical motion by rst solving for the eigenvalues and eigenvectors as we did in lecture for two masses. We also refered to these values and vectors together as the eigen modes. I expect that we will have short discussions about the solution for the motion in each class period