Question 1
Which one of these functions has the set x
x
1
as its greatest possible domain?
Circle your answer.
[1 mark]
Which one of these functions has the set x
x
1
as its greatest possible domain?
Circle your answer.
[1 mark]
The first two non-zero terms of the Maclaurin series expansion of f (x) are
Which one of the following could be f (x)?
Circle your answer.
[1 mark]
The function f (x) x2
1
Find the mean value of f (x) from x
0
5 to x
1
7 Give your answer to three significant figures.
Circle your answer.
[1 mark]
Calculate the acute angle between the line and the plane.
Give your answer to the nearest 0.1
[3 marks]
Show that
where m and n are integers.
[3 marks]
Hence find cosh6 x sinh6 x in the form
where a, b and k are integers.
[5 marks]
Three non-singular square matrices, A, B and R are such that
The matrix R represents a rotation about the z-axis through an angle and
Show that A is independent of the value of .
[3 marks]
Give a full description of the single transformation represented by the matrix A.
[1 mark]
If z cos
i sin
, use de Moivre’s theorem to prove that
[3 marks]
Express sin5 in terms of sin 5
, sin 3
and sin
[4 marks]
Argand Diagram which represent the roots of the equation in part (a).
Find the exact area of the shape formed by joining the transformed points.
[4 marks]
The points A(5, 4, 6) and B(6,
6, 8) lie on the line L. The point C is (15,
5, 9).
D is the point on L that is closest to C.
Find the coordinates of D.
[6 marks]
Hence find, in exact form, the shortest distance from C to L.
[2 marks]
Find the general solution of the differential equation
[7 marks]
Three planes have equations
where k is a real constant.
The planes do not meet at a unique point.
For each value of k found in part (a), identify the configuration of the given planes.
Fully justify your answer, stating in each case whether or not the equations of the planes form a consistent system.
[5 marks]
The equation z3 kz2
9
0 has roots
,
and
.
The equation 9z3 40z2
rz
s
0 has roots
,
and
.
Without calculating the values of ,
and
, find the value of s.
Show working to justify your answer.
[6 marks]
In this question use = 10 m s
2
A light spring is attached to the base of a long tube and has a mass m attached to the other end, as shown in the diagram.
The tube is filled with oil.
When the compression of the spring is metres, the thrust in the spring is
The mass is held at rest in a position where the compression of the spring
The mass is then released from rest. During the subsequent motion the oil causes a resistive force of 6mv newtons to act on the mass, where v m s1 is the speed of the mass.
At time t seconds after the mass is released, the displacement of the mass above its starting position is x metres.
State, giving a reason, the type of damping which occurs.
[1 mark]
The diagram shows part of a spiral curve.
The point P has polar coordinates (r, ) where 0
The points T and S lie on the initial line and O is the pole.
TPQ is the tangent to the curve at P.
Show that the gradient of TPQ is equal to
[4 marks]
The curve has polar equation
where b is a constant such that 0 b
Use the result of part (a) to show that the angle between the line OP and the tangent TPQ does not depend on .
[7 marks]
The paper as printed
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