2021-II-21
Ans: D
… Read I is true.
$\begin{array}{rcl}
\angle ABC & = &#
HKDSE-MATH - 2021 - Paper 2
2021-II-22
Ans: A
… Read $\begin{array}{rcll}
\angle ACD & = & 180
2021-II-23
Ans: B
… Read 2021-II-24
Ans: D
… Read In
$\begin{array}{rcll}
\tan \theta &
2021-II-25
Ans: C
… Read Let
2021-II-26
Ans: A
… Read Since
2021-II-27
Ans: C
… Read Let
2021-II-28
Ans: D
… Read Note that there are
2021-II-29
Ans: B
… Read The inter-quartile range
$\begin{array}{cl}
=
2021-II-30
Ans: A
… Read Let
$
2021-II-31
Ans: A
… Read $\begin{array}{rcl}
\text{The
2021-II-32
Ans: D
… Read $\begin{array}{cl}
& 14\times 16^{15} +17 \ti
2021-II-33
Ans: C
… Read Sub.
$\begin{arra
2021-II-34
Ans: C
… Read Consider the equation of the straight line, we have
$\
2021-II-35
Ans: A
… Read I must be true. For any real number
$\begin{
2021-II-36
Ans: A
… Read I must be true. Since
2021-II-37
Ans: B
… Read For any real number
2021-II-38
Ans: B
… Read Add a point
2021-II-39
Ans: D
… Read Join
In
$\begin{array}{rcll}
\a
2021-II-40
Ans: A
… Read $\left\{ \begin{array}{l}
x^2 +y^2 -4x -22y +75 = 0 &#