HKCEE - 2006 - Paper 2 -

Ans: C
Note that $T(n+1) = T(n) + (2n+3)$ for $n \ge 1$. Hence,

Ans: D
Note that the first term is $2006$ and the common diffe

Ans: A
$\begin{array}{rcl}
b & = & \sqrt{ac} \\
b

Ans: A
$\begin{array}{rcl}
T(1) & = & 4 \\
T(2) &#

Ans: C
$\begin{array}{rcl}
a_1 & = & a_2 –

Ans: C
Note that the first term and the common ratio of the pos

Ans: (a) $a=3$, $b=17$ (b) (i) $\$0.2P$ (ii) $\$1\ 347\ 000$

Ans: C
Note that the patterns are squares of sides of certain

Ans: B
I must be an arithmetic sequence.

$\begin{array}{rc

Ans: B
Since $a-6$, $a$ and $a+5$ form a geometric sequence,

Ans: (a) (ii) No (b) $\$44.4$ (c) No

1. 1. The taxi fare

      $\begin{ar

Ans: C
$\begin{array}{rcl}
T(1) & = & 1 \\
T(2) &#

Ans: B
Let $S(n) = n^2 + 2n$. Then the 5th term of the sequence

$

Ans: A
Let $r$ be the common ratio of the geometric sequence.

Ans: (a) $1$ (b) $\sqrt{3}$, $\dfrac{1}{\sqrt{3}}$

1. The se

Ans: (a) (i) $D=(-6,8)$, centre $=(1,7)$ (ii) $5\sqrt{2}$

Ans: D
First, rewrite the sequence as follow:

\begin{equat

Ans: B
Since $h$, $5$ and $k$ form an arithmetic sequence, th

Ans: C
Let $a$ and $r$ be the first term and the common ratio of

Ans: (a) $\begin{array}{|c|c|c|c|} \hline
4 & 5