Hits: 102

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | Oct-Nov | (P2-9709/23) | Q#7

Hits: 102     Question The diagram shows the curve . The curve has a gradient of 3 at the point P.      i.       Show that the x-coordinate of P satisfies the equation    ii.       Verify that the equation in part (i) has a root between x = 3.1 and x = 3.3.   iii. […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | Oct-Nov | (P2-9709/23) | Q#1

Hits: 39     Question Find the gradient of the curve y = ln(5x + 1) at the point where x = 4. Solution Gradient (slope) of the curve is the derivative of equation of the curve. Hence gradient of curve with respect to  is: Therefore; Rule for differentiation natural logarithmic function , for  is; […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | Oct-Nov | (P2-9709/21) | Q#2

Hits: 59     Question Show that Solution We are required to show that; Rule for integration of  is: This integral is valid only when . Division Rule; Power Rule;

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | May-Jun | (P2-9709/21) | Q#7

Hits: 170     Question      i.       By sketching a suitable pair of graphs, show that the equation has exactly two real roots.    ii.       Show by calculation that this root lies between 1.2 and 1.3.   iii.       Show that this root also satisfies the equation   iv.       Use an iteration process based on the […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | Oct-Nov | (P2-9709/23) | Q#3

Hits: 43   Question Solve the equation 2 ln(x + 3) − ln x = ln(2x − 2). Solution We are given; Power Rule; Division Rule; Taking anti-logarithm of both sides; For any ; We have algebraic formula; Now we have two options. Since we have in the given equation and logarithm of a negative […]

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | Oct-Nov | (P2-9709/22) | Q#2

Hits: 49   Question Use logarithms to solve the equation 4x+1 = 52x-3, giving your answer correct to 3 significant figures. Solution We are given; Taking natural logarithm of both sides; Power Rule; Power Rule; Division Rule; Multiplication Rule;

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | Oct-Nov | (P2-9709/21) | Q#4

Hits: 191 Question Solve the equation 32x − 7(3x) + 10 = 0, giving your answers correct to 3 significant figures. Solution We are given; Let; Hence; Now we have two options. Since ; 2 Taking natural logarithm of both sides; Power Rule;

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | May-Jun | (P2-9709/23) | Q#1

Hits: 50   Question Use logarithms to solve the equation 3x = 2x+2, giving your answer correct to 3 significant figures. Solution We are given; Taking natural logarithm of both sides; Power Rule;

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | May-Jun | (P2-9709/22) | Q#1

Hits: 124   Question Use logarithms to solve the equation 3x = 2x+2, giving your answer correct to 3 significant figures. Solution We are given; Taking natural logarithm of both sides; Power Rule;

# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2011 | May-Jun | (P2-9709/21) | Q#3

Hits: 1001   Question The variables x and y satisfy the equation y = Kxm, where K and m are constants. The graph of ln y  against ln x is a straight line passing through the points (0, 2.0) and (6, 10.2), as shown in the  diagram. Find the values of K and m, correct […]