2019-II-31
Ans: B
By using the intercept form, we have
… Read By using the intercept form, we have
$\begin{array}{
HKDSE-MATH - 2019 - Paper 2 -
2019-II-32
Ans: D
Let $y = \log x$.
… Read Let $y = \log x$.
$\begin{array}{rcl}
\dfrac{3}{3y &
2019-II-33
Ans: A
$\begin{array}{cl}
& 100\ 110\ 000\ 010\ 110_2
… Read $\begin{array}{cl}
& 100\ 110\ 000\ 010\ 110_2
2019-II-34
Ans: D
$\begin{array}{cl}
& \dfrac{4 +i^5}{a + i}
… Read $\begin{array}{cl}
& \dfrac{4 +i^5}{a + i}
2019-II-35
Ans: C
$\left\{ \begin{array}{ll}
x + 2y = 20 & \ldots \
… Read $\left\{ \begin{array}{ll}
x + 2y = 20 & \ldots \
2019-II-36
Ans: C
Let $a$ and $r$ be the first term and the common ratio of
… Read Let $a$ and $r$ be the first term and the common ratio of
2019-II-37
Ans: A
$\left\{ \begin{array}{ll}
3x – y – 2 =0
… Read $\left\{ \begin{array}{ll}
3x – y – 2 =0
2019-II-38
Ans: A
In $\Delta ACO$,
… Read In $\Delta ACO$,
$\begin{array}{rcll}
OA & = &#
2019-II-39
Ans: B
Consider cyclic quadrilateral $ACDE$.
… Read Consider cyclic quadrilateral $ACDE$.
$\begin{arr
2019-II-40
Ans: C
In $\Delta PQR$,
… Read In $\Delta PQR$,
$\begin{array}{rcl}
\tan \angle PR
2019-II-41
Ans: B
I is not true. The orthocentre of $\Delta ABC$ lies on v
… Read I is not true. The orthocentre of $\Delta ABC$ lies on v
2019-II-42
Ans: C
The required probability
… Read The required probability
$\begin{array}{cl}
=
2019-II-43
Ans: D
The required probability
… Read The required probability
$\begin{array}{cl}
=
2019-II-44
Ans: B
Let $\mu$ marks be the mean marks of the examination.
… Read Let $\mu$ marks be the mean marks of the examination.
$
2019-II-45
Ans: A
I is true. The new mean of the new set is $6m + 5$.
… Read I is true. The new mean of the new set is $6m + 5$.
II is not