Question 1
The curve C has equation
The point P lies on C and has coordinates (w, – 32). Find
the equation of the tangent to C at the point P in the form y = mx c, where m and c are constants.
(5)
The curve C has equation
The point P lies on C and has coordinates (w, – 32). Find
the equation of the tangent to C at the point P in the form y = mx c, where m and c are constants.
(5)
g(x) = ex1 + x − 6
Show that the equation g(x) = 0 can be written as
(2)
The root of g(x) 0 is
. The iterative formula
is used to find an approximate value for .
Calculate the values of x1, x2 and x3 to 4 decimal places.
(3)
By choosing a suitable interval, show that = 2.307 correct to 3 decimal places.
(3)
Figure 1 shows part of the curve with equation y = f (x), x
. The curve passes through the points Q(0,2) and P(
3,0) as shown.
Find the value of ff (3).
(2)
On separate diagrams, sketch the curve with equation
(2)
(2)
Indicate clearly on each sketch the coordinates of the points at which the curve crosses or meets the axes.
(3)
Express 6 cos+
8
sin
in the form R
cos(
), where R
0 and 0
α
Give the value of
to 3 decimal places.
(4)
Calculate
the maximum value of p(),
(2)
the value of at which the maximum occurs.
(2)
(i) Differentiate with respect to x
Without using a calculator, find the exact value of
You must show each stage of your working.
(5)
Show that cos 2 + sin
= 1 may be written in the form
(2)
Hence solve, for 0 < 360°, the equation
(4)
Hence, or otherwise, find h(x) in its simplest form.
(3)
Figure 2 shows a graph of the curve with equation y = h(x).
Calculate the range of h(x).
(5)
The value of Bob’s car can be calculated from the formula
where V is the value of the car in pounds (£) and t is the age in years.
Find the value of the car when t 0
(1)
Calculate the exact value of t when V = 9500
(4)
Find the rate at which the value of the car is decreasing at the instant when t 8. Give your answer in pounds per year to the nearest pound.
(4)
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