(PDF) Edexcel GCE core 4 mathematics C4 6666/01 advanced subsidiary jan 2006 question paper

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N23553AW850/R6666/57570 3/3/3/3/3/3/10,000

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6666/01Edexcel GCECore Mathematics C4Advanced LevelMonday 23 January 2006 – AfternoonTime: 1 hour 30 minutes

Materials required for examination Items included with question papersMathematical Formulae (Green) Nil

Candidates may use any calculator EXCEPT those with the facility forsymbolic algebra, differentiation and/or integration. Thus candidates mayNOT use calculators such as the Texas Instruments TI 89, TI 92, Casio CFX 9970G, Hewlett Packard HP 48G.

Instructions to CandidatesIn the boxes above, write your centre number, candidate number, your surname, initial(s) andsignature.Check that you have the correct question paper.You must write your answer for each question in the space following the question.When a calculator is used, the answer should be given to an appropriate degree of accuracy.

Information for CandidatesA booklet ‘Mathematical Formulae and Statistical Tables’ is provided.Full marks may be obtained for answers to ALL questions.The marks for individual questions and the parts of questions are shown in round brackets: e.g. (2).There are 8 questions in this question paper. The total mark for this paper is 75.There are 20 pages in this question paper. Any blank pages are indicated.

Advice to CandidatesYou must ensure that your answers to parts of questions are clearly labelled.You must show sufficient working to make your methods clear to the Examiner. Answers withoutworking may gain no credit.

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CentreNo.

Candidate No.

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Paper Reference

6 6 6 6 0 1

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1. A curve C is described by the equation

3x2 + 4y2– 2x + 6xy – 5 = 0.

Find an equation of the tangent to C at the point (1, –2), giving your answer in the form ax + by + c = 0, where a, b and c are integers.

(7)

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Question 1 continued

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Q1

(Total 7 marks)

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2. (a) Given that y = sec x, complete the table with the values of y corresponding to x = , and .

(2)

(b) Use the trapezium rule, with all the values for y in the completed table, to obtain anestimate for . Show all the steps of your working, and give your answerto 4 decimal places.

(3)

The exact value of is .

(c) Calculate the % error in using the estimate you obtained in part (b).(2)

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ln(1 2)+ √4

0sec dx x

π

∫

4

0sec dx x

π

∫

4π

8π

16π

*N23553A0420*

x 0 16π

8π 3

16π

4π

y 1 1.20269

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Question 2 continued

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Q2

(Total 7 marks)

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3. Using the substitution u2 = 2x – 1, or otherwise, find the exact value of

(8)________________________________________________________________________________________________________________________________

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5

1

3 d .(2 1)

x xx√ −∫

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7

Question 3 continued

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Q3

(Total 8 marks)

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8

4. Figure 1

Figure 1 shows the finite shaded region, R, which is bounded by the curve y = xex, the linex = 1, the line x = 3 and the x-axis.

The region R is rotated through 360 degrees about the x-axis.

Use integration by parts to find an exact value for the volume of the solid generated.

(8)

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y

O 1 3 x

y = xex

R

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Question 4 continued

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Q4

(Total 8 marks)

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10

5.

(a) Find the values of A and C and show that B = 0. (4)

(b) Hence, or otherwise, find the series expansion of f(x), in ascending powers of x, upto and including the term in x3. Simplify each term.

(7)

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2132 2

3 16f ( ) , | | .(1 3 )(2 ) (1 3 ) (2 ) (2 )

x A B Cx xx x x x x+

= = + + <− + − + +

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Question 5 continued

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Q5

(Total 11 marks)

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12

6. The line l1 has vector equation

r = 8i + 12j + 14k + λ(i + j – k),

where λ is a parameter.

The point A has coordinates (4, 8, a), where a is a constant. The point B has coordinates(b, 13, 13), where b is a constant. Points A and B lie on the line l1.

(a) Find the values of a and b.(3)

Given that the point O is the origin, and that the point P lies on l1 such that OP isperpendicular to l1,

(b) find the coordinates of P.(5)

(c) Hence find the distance OP, giving your answer as a simplified surd.(2)

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Question 6 continued

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Q6

(Total 10 marks)

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14

7. The volume of a spherical balloon of radius r cm is V cm3, where .

(a) Find .

(1)

The volume of the balloon increases with time t seconds according to the formula

(b) Using the chain rule, or otherwise, find an expression in terms of r and t for .

(2)

(c) Given that V = 0 when t = 0, solve the differential equation , to obtain

V in terms of t.(4)

(d) Hence, at time t = 5,

(i) find the radius of the balloon, giving your answer to 3 significant figures,(3)

(ii) show that the rate of increase of the radius of the balloon is approximately2.90 × 10–2 cm s–1.

(2)

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2

d 1000d (2 1)Vt t=

+

dd

rt

2

d 1000 , 0.d (2 1)V tt t=

+

ddVr

343V rπ=

*N23553A01420*

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Question 7 continued

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Question 7 continued

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Question 7 continued

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Q7

(Total 12 marks)

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18

8. Figure 2

The curve shown in Figure 2 has parametric equations

x = t – 2 sin t, y = 1 – 2 cos t, 0 t 2π.

(a) Show that the curve crosses the x-axis where and .

(2)

The finite region R is enclosed by the curve and the x-axis, as shown shaded in Figure 2.

(b) Show that the area of R is given by the integral

(3)

(c) Use this integral to find the exact value of the shaded area.(7)

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53

3

2(1 2cos ) d .t tπ

π−∫

53

t π=

3t π=

*N23553A01820*

y

xO

R

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Question 8 continued

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Question 8 continued

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TOTAL FOR PAPER: 75 MARKS

END

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Q8

(Total 12 marks)

Edexcel GCE core 4 mathematics C4 6666/01 advanced subsidiary jan 2006 question paper

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