Only my opinions, not to offend anyone.
1) question on image - equap chances of reflection. Mathocrat and other maths coaching teachers think its reflection. Also a basic question like projection seems unlikely for 20 marks.
2) q 8a in paper 2 is not conventional. No solved question of that type is given as the problem was already in canonical form.
3) 8c paper 2 - no way one can do it in exam hall if similar type is not done in home.