27.the interval in which the solution of the following initial value problem is certain to exist y +(tant)y = sint, y(t) = 0 is 3tt a) t2 3tt b) 0

27.The interval in which the solution of the following initial value problem is certain to exist y +(tant)y = sint, y(T) = 0 is 3Tt a) t2 3Tt b) 0