Find the general solution of the given equation. y' 9y'+20y=0 Choose the correct solution below. c and c are arbitrary constants. A. y=ce 5x 5x 4x + B. y=Cex +CXe 5x C. y=Ce 5x + C2e4x OD. y = c cos (5x) + c sin (4x) For a given circuit, L = 3 mH, R = 0, C = 90 nF, and E = 0. Find the equation relating the charge and the time if q = 105 C and i = 0 when t = 0. Choose the correct equation below. A. q 100,000 cos 0.0609t OB. q 100,000 cos 60,858t OC. q 100,000 sin 60,858t D. qcos 60,858t