Question

please help

2. Find the general solution to + 4yd cos (2x)

Answer 1

Let d hence conn , we get day tuyucosku) 0 therefore (D² + 4) y 4 col (2n) step! To bind complementary function (6 +12) (0-12) you Cicosin tosin 2n (a) Step: 2 To find particuler Integral (P.1) As we know P.I f(n) here f(n) au cos(an) Da ty P.I a ucosen) substituting x² in place of D². but when we put u in place P. I will non-defined menfi.com 2) P. 2 = 21 Corin - 5 zu zu Coranda D2ty our get 23

I Page P.1 = zu scoren) dan zu sinau 2 P-I xsazn hence our generel solution becomes Generd solution (G.s) C.Ft P. I Opse.co y = Cico2ntcsinan ta sinen