2015-II-28
Ans: B
The required probability
… Read The required probability
$\begin{array}{cl}
=
HKDSE-MATH - 2015 - Paper 2 -
2015-II-29
Ans: A
From the box-and-whisker diagram, the upper quartil
… Read From the box-and-whisker diagram, the upper quartil
2015-II-30
Ans: B
For $m=3$, the mean $p$
… Read For $m=3$, the mean $p$
$\begin{array}{cl}
= & \
2015-II-31
Ans: C
$\begin{array}{cl}
& \dfrac{1}{x^2 -2x +1} &#
… Read $\begin{array}{cl}
& \dfrac{1}{x^2 -2x +1} &#
2015-II-32
Ans: A
The equation of the straight line in the figure is
… Read The equation of the straight line in the figure is
$\be
2015-II-33
Ans: A
$\begin{array}{cl}
& 11 + 2^6 + 2^{10} + 2^{11} \
… Read $\begin{array}{cl}
& 11 + 2^6 + 2^{10} + 2^{11} \
2015-II-34
Ans: B
Since $\alpha$ and $\beta$ are the roots of the quadra
… Read Since $\alpha$ and $\beta$ are the roots of the quadra
2015-II-35
Ans: C
$\begin{array}{rcl}
z & = & (a+5)i^6 + (a-
… Read $\begin{array}{rcl}
z & = & (a+5)i^6 + (a-
2015-II-36
Ans: D
Note that the shaded region represents the solution o
… Read Note that the shaded region represents the solution o
2015-II-37
Ans: D
Let $a$ and $r$ be the first term and the common ratio of
… Read Let $a$ and $r$ be the first term and the common ratio of
2015-II-38
Ans: B
$\begin{array}{rcl}
\cos^2 x – \sin x & =
… Read $\begin{array}{rcl}
\cos^2 x – \sin x & =
2015-II-39
Ans: D
… Read By comparing the graphs of $y=\sin x^\circ$ and $y=\s
2015-II-40
Ans: C
Since $BD$ is a diameter of the circle, then we have
… Read Since $BD$ is a diameter of the circle, then we have
$\b
2015-II-41
Ans: B
$\left\{ \begin{array}{ll}
x^2 +y^2+2x-6y+k=0 �
… Read $\left\{ \begin{array}{ll}
x^2 +y^2+2x-6y+k=0 �
2015-II-42
Ans: A
… Read Let $R(h,k)$ be the orthocentre of $\Delta OPQ$. Note
2015-II-43
Ans: C
The required number
… Read The required number
$\begin{array}{cl}
= & P^6
2015-II-44
Ans: D
The required probability
… Read The required probability
$\begin{array}{cl}
=
2015-II-45
Ans: B
I must be true. Since $x_1 = a_{50}$, then for the first
… Read I must be true. Since $x_1 = a_{50}$, then for the first