HKDSE-MATH - 2012PP - Paper 1 -

Ans: $\dfrac{y^7}{x^{10}}$
$\begin{array}{cl}
& \

Ans: B
$\begin{array}{cl}
& (27\cdot 9^{n+1})^3 \\
=

Ans: $\dfrac{x^3}{y^{10}}$
$\begin{array}{cl}
& \

Ans: B
$\begin{array}{cl}
& (2n^3)^{-5} \\
= & 2

Ans: $\dfrac{n^{35}}{m^6}$
$\begin{array}{cl}
& \

Ans: D
$\begin{array}{cl}
& \dfrac{(3y^6)^4}{3y^2

Ans: $x^{11}y^{20}$
$\begin{array}{cl}
& \dfrac{(

Ans: A
$\begin{array}{cl}
& 8^{222} \cdot 5^{666} \\

Ans: $\dfrac{m^{22}}{n^3}$
$\begin{array}{cl}
& \

Ans: D
$\begin{array}{cl}
& \left(\dfrac{1}{9^{55

Ans: $\dfrac{x^9}{y^5}$
$\begin{array}{cl}
& \dfr

Ans: B
$\begin{array}{cl}
& \dfrac{8^{2n+1}}{4^{3

Ans: D
$\begin{array}{cl}
& \dfrac{(6x^7)^2}{4x^5

Ans: $\dfrac{m^9}{n^{10}}$
$\begin{array}{cl}
& \

Ans: C
$\begin{array}{cl}
& \dfrac{6x}{(3x^{-5})^

Ans: $\dfrac{\beta^{23}}{\alpha^9}$
$\begin{array}{c

Ans: B

$\begin{array}{cl}
& \dfrac{(2^n)(8^{3n})}

Ans: $\dfrac{a^{17}}{b^{14}}$

$\begin{array}{cl}