Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2008 | June | Q#4

  Question , a.   Differentiate to find  . Given that , b.   Find the value of x. Solution a.   We are required to differentiate; Rule for differentiation of  is: Rule for differentiation of  is: Rule for differentiation is of  is: b.   We are given that; We have found in (a) that; We are given that x>0, therefore;

Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2008 | January | Q#5

  Question a.   Write  in the form  where p and q are constants. Given that  , x > 0, b.   find  , simplifying the coefficient of each term. Solution a.   We are given; b.   We are given; We are required to find; Therefore; Rule for differentiation of  is: As demonstrated in (a); Therefore; Rule for differentiation of  is: […]