2020-II-02
Ans: C
$\begin{array}{rcl}
a(a + b) & = & 2(b R
… Read $\begin{array}{rcl}
a(a + b) & = & 2(b R
HKDSE-MATH - 2020
2020-II-03
Ans: A
$\begin{array}{rcl}
\dfrac{5}{4k+3} – \dfr
… Read $\begin{array}{rcl}
\dfrac{5}{4k+3} – \dfr
2020-II-04
Ans: A
$\begin{array}{cl}
& (3a + 2b)(4a – 5b) &
… Read $\begin{array}{cl}
& (3a + 2b)(4a – 5b) &
2020-II-05
Ans: B
$\begin{array}{cl}
& f(1 + \beta) – f(1 &
… Read $\begin{array}{cl}
& f(1 + \beta) – f(1 &
2020-II-06
Ans: D
Since $x+2$ is a factor of $g(x)$, then by the factor th
… Read Since $x+2$ is a factor of $g(x)$, then by the factor th
2020-II-07
Ans: C
$\begin{array}{rcl}
(x + h)(x+6) & \equiv
… Read $\begin{array}{rcl}
(x + h)(x+6) & \equiv
2020-II-08
Ans: A
I is true. Rewrite the equation of $L_2$ to the slope-i
… Read I is true. Rewrite the equation of $L_2$ to the slope-i
2020-II-09
Ans: A
Let $\$P$ be the selling price of the toy. Then the cost
… Read Let $\$P$ be the selling price of the toy. Then the cost
2020-II-10
Ans: B
The area in the map $:$ the actual area
… Read The area in the map $:$ the actual area
$\begin{array}
2020-II-11
Ans: A
Let $w = ku^3\sqrt{v}$, where $k \neq 0$.
… Read Let $w = ku^3\sqrt{v}$, where $k \neq 0$.
When $u = 2$ an
2020-II-12
Ans: D
$\begin{array}{rcl}
T(1) & = & 3 \\
T(2) &#
… Read $\begin{array}{rcl}
T(1) & = & 3 \\
T(2) &#
2020-II-13
Ans: D
Consider $5-4x < 9$.
… Read Consider $5-4x < 9$.
$\begin{array}{rcl}
5 – 4x �
2020-II-14
Ans: B
Add a point $U$ on $QR$ such that $TU \perp QR$.
… Read Add a point $U$ on $QR$ such that $TU \perp QR$.
Note tha
2020-II-15
Ans: D
Let $r$ and $\theta$ be the radius and the angle of the s
… Read Let $r$ and $\theta$ be the radius and the angle of the s
2020-II-16
Ans: B
Consider the volume of the right circular cylinder, w
… Read Consider the volume of the right circular cylinder, w
2020-II-17
Ans: C
Note that $\Delta OPU \sim \Delta OQT$. Hence, we have
… Read Note that $\Delta OPU \sim \Delta OQT$. Hence, we have
2020-II-18
Ans: B
Join $DG$.
… Read Join $DG$.
Consider $\Delta AEG$ and $\Delta DEG$. Si
2020-II-19
Ans: B
Add a straight line parallel to the two parallel lines
… Read Add a straight line parallel to the two parallel lines
2020-II-20
Ans: D
In $\Delta ACD$,
… Read In $\Delta ACD$,
$\begin{array}{rcll}
\because \an
2020-II-21
Ans: C
In $\Delta BCE$,
… Read In $\Delta BCE$,
$\begin{array}{cl}
& BE^2 + BC