Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ruby negi
y=acos(beta*x)+bsin(beta*x)is the solution of differential equation. so y1=acos(beta*x) and y2=bsin(beta*x) are also solution of Differential equation. so on putting y1,y2,y on different it equation u will get the coefficients... best regards..