2012PP-II-34
Ans: D
$\begin{array}{cl}
& (x+3i)(3+i) \\
= & 3
… Read $\begin{array}{cl}
& (x+3i)(3+i) \\
= & 3
HKDSE-MATH
2012PP-II-35
Ans: A
Note that the sequence is an arithmetic sequence, and
… Read Note that the sequence is an arithmetic sequence, and
2012PP-II-36
Ans: B
$\begin{array}{rcl}
a & = & \log_{12} b \\
… Read $\begin{array}{rcl}
a & = & \log_{12} b \\
2012PP-II-37
Ans: A
$\begin{array}{rcl}
x & = & kt^a \\
\log_3
… Read $\begin{array}{rcl}
x & = & kt^a \\
\log_3
2012PP-II-38
Ans: C
Consider $y=a\sin(x^\circ+\theta)$.
… Read Consider $y=a\sin(x^\circ+\theta)$.
If $\theta$ i
2012PP-II-39
Ans: A
Note that $\angle DAB$ and $\angle CBA$ are $90^\circ
… Read Note that $\angle DAB$ and $\angle CBA$ are $90^\circ
2012PP-II-40
Ans: C
Let $AD=AF=r\mbox{ cm}$.
… Read Let $AD=AF=r\mbox{ cm}$.
Since $AD$ is a radius of the
2012PP-II-41
Ans: B
$\left\{\begin{array}{ll}
x-y=0 & \ldots \un
… Read $\left\{\begin{array}{ll}
x-y=0 & \ldots \un
2012PP-II-42
Ans: A
Note that $\Delta OAB$ is an isosceles triangle with $
… Read Note that $\Delta OAB$ is an isosceles triangle with $
2012PP-II-43
Ans: B
The required probability
… Read The required probability
$\begin{array}{cl}
=
2012PP-II-44
Ans: D
Let $\{x_1,~x_2,~\ldots,~x_n\}$ be the set of numbe
… Read Let $\{x_1,~x_2,~\ldots,~x_n\}$ be the set of numbe
2012PP-II-45
Ans: C
I cannot be determine. The median of $A=\dfrac{\beta
… Read I cannot be determine. The median of $A=\dfrac{\beta