Q.8 (NAT) Determine the value of a such that r = 1 - following differential equation is the solution of the (1-) d + yr = ay u(1)=0 Q.9 (NAT) Consider the differential equation (y-)-1; y0)-to determine yo such that y(r) has finite limit as z oo Q.10 (NAT) Consider the differential equation dy +10y Sr); a>0 where fr) is a contimmous function such that lim,o f(r) = 1 then the value of lim Y(r) equals