Sec03                                                                         Sec04

Q1-a-Solution                                                                    Q1-a-Solution

Q1-b-Solution                                                                    Q1-b-Solution

Q2-a-Solution                                                                    Q2-a-Solution

Q2-b-Solution                                                                    Q2-b-Solution

Q4-a-Solution                                                                    Q4-b-Solutiion

Q5-a-Solution                                                                    Q5-a-Solution

Q5-b-Solution                                                                    Q5-b-Solution

Q6-a-Solution                                                                    Q6-a-Solution

Q6-b-Solution                                                                    Q6-b-Solution

                        E1-a-Solution                    E1-b-Solution

                         E2-a-Solution                    E2-b-Solution