2017-II-13
Ans: B
$\begin{array}{rcl}
T(1) & = & 1 \\
T(2) &#
… Read $\begin{array}{rcl}
T(1) & = & 1 \\
T(2) &#
HKDSE-MATH
2017-II-14
Ans: B
Let $x \text{ cm}$ be the length of $AD$. Then we have
… Read Let $x \text{ cm}$ be the length of $AD$. Then we have
$\
2017-II-15
Ans: C
Let $r\text{ cm}$ and $h\text{ cm}$ be the base radius
… Read Let $r\text{ cm}$ and $h\text{ cm}$ be the base radius
2017-II-16
Ans: D
… Read Since $\Delta CEH \sim \Delta CBG$, then we have
$\beg
2017-II-17
Ans: D
… Read Method 1:
In $\Delta ACD$ and $\Delta BDE$,
$\angle CA
2017-II-19
Ans: D
Add a straight line $XZ$ passing through $A$ such that
… Read Add a straight line $XZ$ passing through $A$ such that
2017-II-20
Ans: D
According to the question, we draw the parallelogram
… Read According to the question, we draw the parallelogram
2017-II-21
Ans: C
Join $AC$.
… Read Join $AC$.
In quadrilateral $ABCD$,
$\begin{array}
2017-II-22
Ans: D
In $\Delta BCE$,
… Read In $\Delta BCE$,
$\begin{array}{rcl}
\cos 40^\circ
2017-II-23
Ans: A
I is true. Note that $m_{L_1} = \dfrac{-1}{m}$ and $m_
… Read I is true. Note that $m_{L_1} = \dfrac{-1}{m}$ and $m_
2017-II-24
Ans: A
Note that the slope of the straight line $9x-5y+45=0$
… Read Note that the slope of the straight line $9x-5y+45=0$
2017-II-25
Ans: C
Plot the points $P$, $Q$ and $R$ on the same polar coord
… Read Plot the points $P$, $Q$ and $R$ on the same polar coord
2017-II-26
Ans: A
I is true. Note that the centre of $C_1$ is
… Read I is true. Note that the centre of $C_1$ is
$\begin{arr
2017-II-27
Ans: B
Note that $A$ and $B$ are points lying on the circle. Th
… Read Note that $A$ and $B$ are points lying on the circle. Th
2017-II-28
Ans: C
The required probability
… Read The required probability
$\begin{array}{cl}
=
2017-II-29
Ans: B
The lower quartile of the distribution is the data of t
… Read The lower quartile of the distribution is the data of t
2017-II-30
Ans: B
Note that the mean of the positive integers is $5$, the
… Read Note that the mean of the positive integers is $5$, the
2017-II-31
Ans: D
Note that $g(x) = f\left(\dfrac{x}{2}\right)$ mean
… Read Note that $g(x) = f\left(\dfrac{x}{2}\right)$ mean
2017-II-32
Ans: D
$\begin{array}{cl}
& 8^3 + 8^{19} \\
= & (2
… Read $\begin{array}{cl}
& 8^3 + 8^{19} \\
= & (2