2009-II-31
Ans: B
Let $(x,y)$ be the coordinates of $P$.
… Read Let $(x,y)$ be the coordinates of $P$.
$\begin{array
HKCEE
2009-II-32
Ans: A
Note that the slope of $L$
… Read Note that the slope of $L$
$\begin{array}{cl}
= &
2009-II-33
Ans: D
According to the slope-intercept form, the slope and
… Read According to the slope-intercept form, the slope and
2009-II-34
Ans: C
The required probability
… Read The required probability
$\begin{array}{cl}
=
2009-II-35
Ans: C
Let $x\text{ cm}$ be the mean height of the boys. Hence
… Read Let $x\text{ cm}$ be the mean height of the boys. Hence
2009-II-36
Ans: C
I is false. The range
… Read I is false. The range
$\begin{array}{cl}
= & 36 &
2009-II-37
Ans: D
Note that $y=g(x) = \frac{1}{3} f(x)$. Therefore, $g
… Read Note that $y=g(x) = \frac{1}{3} f(x)$. Therefore, $g
2009-II-38
Ans: C
$\begin{array}{cl}
& 1234^{3235} \\
\approx &
… Read $\begin{array}{cl}
& 1234^{3235} \\
\approx &
2009-II-39
Ans: D
… Read Let $f(x) = 3^x$. The above figure is the graph of $y=f(
2009-II-40
Ans: D
$\begin{array}{cl}
& 16^{12} + 14 \\
= & 1 \
… Read $\begin{array}{cl}
& 16^{12} + 14 \\
= & 1 \
2009-II-41
Ans: A
Let $f(x) = x^{2009} + x^{2008} + \cdots + x$. Hence, th
… Read Let $f(x) = x^{2009} + x^{2008} + \cdots + x$. Hence, th
2009-II-42
Ans: B
Let $S(n) = n^2 + 2n$. Then the 5th term of the sequence
… Read Let $S(n) = n^2 + 2n$. Then the 5th term of the sequence
$
2009-II-43
Ans: A
Let $r$ be the common ratio of the geometric sequence.
… Read Let $r$ be the common ratio of the geometric sequence.
2009-II-44
Ans: A
Consider $y=x-9$. Note that the slope is $1$, which is
… Read Consider $y=x-9$. Note that the slope is $1$, which is
2009-II-45
Ans: B
$\begin{array}{rcl}
\cos^2 x – \sin^2 x &
… Read $\begin{array}{rcl}
\cos^2 x – \sin^2 x &
2009-II-46
Ans: C
Consider $y=a\sin(x^\circ + \theta)$.
… Read Consider $y=a\sin(x^\circ + \theta)$.
For $a1$, $y=
2009-II-47
Ans: B
… Read Let $N$ be the mid-point of $HG$. Then the angle betwee
2009-II-48
Ans: B
… Read Join $AD$. Since $AB$ is a diameter of the circle $ABCD
2009-II-49
Ans: C
Let $\angle CBD = x$. Since $A$, $B$, $C$ and $D$ are fou
… Read Let $\angle CBD = x$. Since $A$, $B$, $C$ and $D$ are fou
2009-II-50
Ans: C
… Read Denote $O$ the centre of the circle. Add a perpendicul