Thus prove, given ,
, that the difference between an odd natural number greater than 1 and its cube is always even.
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Thus prove, given ,
, that the difference between an odd natural number greater than 1 and its cube is always even.
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Find .
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The functions and
are defined such that
and
.
Show that .
Given that , find the value of
.
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The following diagram shows the graph of . The graph has a horizontal asymptote at
. The graph crosses the
-axis at
and
, and the
-axis at
On the following set of axes, sketch the graph of , clearly showing any asymptotes with their equations along with the coordinates of any local maxima or minima.
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Given that and that the graph of
passes through the point
, find an expression for
in terms of
.
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The plane has the Cartesian equation
.
The line has the vector equation
. The acute angle between the line
and the plane
is
.
Find the possible values of .
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Show that
Hence or otherwise for
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The function is defined by
The graph of
is shown in the following diagram.
Find the largest value of such that
has an inverse function.
For this value of , find an expression for
, stating its domain.
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A continuous random variable has the probability density function
given by
Find
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Express in the form
, where
and
.
Let the roots of the equation be
and
.
Find and
expressing your answers in the form
, where
and
.
On an Argand diagram and
are represented by the points
and
respectively.
Find the area of triangle .
By considering the sum of the roots and
, show that
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The function is defined by
.
Find the first two derivatives of and hence find the Maclaurin series for
up to and including the
term.
Show that the coefficient of in the Maclaurin series for
is zero.
Using the Maclaurin series for and
, find the Maclaurin series for
up to and including the
term.
Hence, or otherwise, find
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Let where
.
Show that .
The graph of has exactly one maximum point A.
Find the -coordinate of A.
The second derivative of is given by
. The graph of
has exactly one point of inflexion B.
Show that the -coordinate of B is
.
The region is enclosed by the graph of
, the
-axis, and the vertical lines through the maximum point A and the point of inflexion B.
Calculate the area of R in terms of and show that the value of the area is independent of
.
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