o O O 2. Solve the fol lowing initial value problems for first-order linear differ- ential equations. dy (1). (x + 1)de + y = In x, y(1)=10 (Answer: y = x (in X-1) + 21 ) + 1 dy (2). cos z + (sin z) y=2r cos2 z, y(Ï/4)=-15V2Ï2/32 r (Answer: y = (x2-r2) cos x)
