Question 1
It is given that
where λ is a constant.
Find the value of λ
Circle your answer.
–28 –8 8 28
[1 mark]
It is given that
where λ is a constant.
Find the value of λ
Circle your answer.
–28 –8 8 28
[1 mark]
The function f is a quartic function with real coefficients.
The complex number 5i is a root of the equation f(x) = 0
Which one of the following must be a factor of f(x)?
Circle your answer.
(x2 – 25)
(x2 – 5)
(x2 + 5)
(x2 + 25)
[1 mark]
The first four terms of the series S can be written as
S = (1 × 2) + (2 × 3) + (3 × 4) + (4 × 5) +...
Show that the sum of the first n terms of S is equal to
[2 marks]
The cubic equation x3 + 5x2 – 4x + 2 = 0
has roots α, β and γ
Find a cubic equation, with integer coefficients, whose roots are 3α, 3β and 3γ
[3 marks]
The matrices A and B are defined as follows.
Find the values of p such that A and B are commutative under matrix multiplication.
Fully justify your answer.
[4 marks]
[4 marks]
The matrix C is defined by
Prove that the transformation represented by C has no invariant lines of the form y = kx
[4 marks]
Latifa and Sam are studying polynomial equations of degree greater than 2, with real coefficients and no repeated roots.
Latifa says that if such an equation has exactly one real root, it must be of degree 3
Sam says that this is not correct.
State, giving reasons, whether Latifa or Sam is right.
[3 marks]
Use the method of differences to show that
[5 marks]
Find the smallest integer n such that
[3 marks]
The matrix M is defined as
where k is a constant.
State any restrictions on the value of k
[1 mark]
The diagram shows the line y = 5 – x
On the diagram above, sketch the graph of y = │x2 – 4x│, including all parts of the graph where it intersects the line y = 5 – x
(You do not need to show the coordinates of the points of intersection.)
[3 marks]
Find the solution of the inequality
│x2 – 4x│> 5 – x
Give your answer in an exact form.
[4 marks]
The function f is defined by
where a and b are constants.
The graph of y = f(x) has asymptotes x = –2 and y = 3
Write down the value of a and the value of b
[2 marks]
The diagram shows the graph of y = f(x) and its asymptotes.
The shaded region R is enclosed by the graph of y = f(x), the x-axis and the y-axis.
The shaded region R is rotated through 360° about the x-axis to form a solid.
Find the volume of this solid.
Give your answer to three significant figures.
[3 marks]
The shaded region R is rotated through 360° about the y-axis to form a solid.
Find the volume of this solid.
Give your answer to three significant figures.
[4 marks]
The Argand diagram below shows a circle C
Write down the equation of the locus of C in the form
│ z – w │ = a
where w is a complex number whose real and imaginary parts are integers, and a is an integer.
[2 marks]
It is given that z1 is a complex number representing a point on C. Of all the complex numbers which represent points on C, z1 has the least argument.
Find │z1│
Give your answer in an exact form.
[3 marks]
[4 marks]
Solve the differential equation
given that y = and
= 0 when x = 0
[10 marks]
The integral In is defined by
[6 marks]
Use the result from part (a) to show that
where a and b are integers to be found.
[3 marks]
The paper as printed
Spotted a mistake on this page?Report a problem