2008-II-04
Ans: B
$\begin{array}{cl}
& (2x^2-3x+1) -2(x^2+2x-
… Read $\begin{array}{cl}
& (2x^2-3x+1) -2(x^2+2x-
HKCEE - 2008
2008-II-05
Ans: C
I has $x+y$ as a factor.
… Read I has $x+y$ as a factor.
$x^2-y^2=(x+y)(x-y)$
II cann
2008-II-06
Ans: C
$\begin{array}{rcl}
f(4)-f(3) & = & 21 \\
… Read $\begin{array}{rcl}
f(4)-f(3) & = & 21 \\
2008-II-07
Ans: C
Note that the length and the width of the rectangles is
… Read Note that the length and the width of the rectangles is
2008-II-08
Ans: D
$\left\{ \begin{array}{ll}
m+2 = n-1 & \ldots \
… Read $\left\{ \begin{array}{ll}
m+2 = n-1 & \ldots \
2008-II-09
Ans: A
Note that the coordinates of the vertex of the graph of
… Read Note that the coordinates of the vertex of the graph of
2008-II-10
Ans: A
$f(x)<3$ means the part of $y=f(x)$ under the line $y=3$. Therefore, the solution of $f(x)<3$ is $a < x < d$.
… Read $f(x)<3$ means the part of $y=f(x)$ under the line $y=3$. Therefore, the solution of $f(x)<3$ is $a < x < d$.
2008-II-11
Ans: C
Note that the patterns are squares of sides of certain
… Read Note that the patterns are squares of sides of certain
2008-II-12
Ans: A
Let $\$x$ be the cost of the bag.
… Read Let $\$x$ be the cost of the bag.
$\begin{array}{rcl}
2008-II-13
Ans: C
The cost of $x\text{ kg}$ of rice of brand $A$
… Read The cost of $x\text{ kg}$ of rice of brand $A$
$\begin{
2008-II-14
Ans: D
Let $x_0$, $y_0$ and $z_0$ be the original values of $x
… Read Let $x_0$, $y_0$ and $z_0$ be the original values of $x
2008-II-15
Ans: C
Let $f(x)=k_1x + k_2x^2$, where $k_1$ and $k_2$ are no
… Read Let $f(x)=k_1x + k_2x^2$, where $k_1$ and $k_2$ are no
2008-II-16
Ans: B
Note that the maximum absolute error
… Read Note that the maximum absolute error
$\begin{array}
2008-II-17
Ans: C
$\begin{array}{cl}
& 0.049~876~5 \\
= & 0
… Read $\begin{array}{cl}
& 0.049~876~5 \\
= & 0
2008-II-18
Ans: C
… Read Let $r\text{ cm}$ and $l \text{ cm}$ be the base radius
2008-II-19
Ans: C
The base area of the right prism
… Read The base area of the right prism
$\begin{array}{cl}
=
2008-II-20
Ans: C
Note that the area of the shaded region is the differen
… Read Note that the area of the shaded region is the differen
2008-II-21
Ans: D
Since $ABCD$ is a parallelogram, then $AD = BC$. Hence
… Read Since $ABCD$ is a parallelogram, then $AD = BC$. Hence
2008-II-22
Ans: C
Consider $\Delta ABD$.
… Read Consider $\Delta ABD$.
$\begin{array}{rcl}
\tan 30
2008-II-23
Ans: A
$\begin{array}{rcl}
\dfrac{\cos A}{\tan (90^\cir
… Read $\begin{array}{rcl}
\dfrac{\cos A}{\tan (90^\cir