For part onecan anyone please explain Q9 part i http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s11_qp_12.pdf
how can i get the domain and range from an equation? i usually face problem in these parts
Use this site. The very first topic is completing the square and different examples, watch them will help alot.
http://www.examsolutions.net/maths-revision/syllabuses/CIE/period-1/P1/module.php