HKDSE-MATH - 2014 - Paper 2

2014-II-01

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

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2014-II-02

Ans: A
$\begin{array}{cl}
& u^2 – v^2 -5u + 5v \

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2014-II-03

Ans: B
$\begin{array}{rcl}
px(x-1)+x^2 & \equiv �

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2014-II-04

Ans: B
$\begin{array}{rcl}
x^2 + ax +a & = & 1 \
x^

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2014-II-05

Ans: C
Note that the graph opens upwards, then

m > 0

. Not

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2014-II-06

Ans: D
I may not be true. Suppose

a = 3

and

b = - 6

. It is obvio

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2014-II-07

Ans: C
The compound inequality is equivalent to

- 3 x < 6

and

6 < 2 x

. Then, we have

$\begi

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2014-II-08

Ans: A
Let

$ x

and

$ y

be the price of a bowls and a cup resp

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2014-II-09

Ans: A
Let

x

be the number of male workers.

Then the number o

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2014-II-10

Ans: C
Let

θ

and

r cm

be the angle and the rad

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2014-II-11

Ans: A
Note that the maximum absolute error is $0.5\text{ cm

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2014-II-12

Ans: D
The compound equation is equivalent to $\dfrac{4}{5

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2014-II-13

Ans: C
Let

z = \frac{k y^{3}}{x}

, where

k

is a non-zero con

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2014-II-14

Ans: D
By the given formula, we have

$\left\{ \begin{array}

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2014-II-15

Ans: C
Since

B C = C D = D E

and

∠ B C D = 90^{\circ}

, then $B

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2014-II-16

Ans: C
Consider

Δ D A E

and

Δ D C G

$\begin{arr

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2014-II-17

Ans: D

$B D$ is produced and intersects $E C$ at $F$ . Note that

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2014-II-18

Ans: A
In

Δ A B C

, we have

$\begin{array}{rcl}
\tan \t

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2014-II-19

Ans: A
$\begin{array}{cl}
& (\cos(90^\circ+\theta

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2014-II-20

Ans: B

Join $C D$ . Since $A C$ is a diameter, then $\angle ADC =

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