2009-II-11
Ans: B
The required interest
… Read The required interest
$\begin{array}{cl}
= & 3
HKCEE
2009-II-12
Ans: C
$\begin{array}{rcl}
T(1) & = & 1 \\
T(2) &#
… Read $\begin{array}{rcl}
T(1) & = & 1 \\
T(2) &#
2009-II-13
Ans: C
Length in the map $:$ actual length
… Read Length in the map $:$ actual length
$\begin{array}{c
2009-II-14
Ans: D
Let $y = k_1 + \dfrac{k_2}{x}$, where $k_1$ and $k_2$ a
… Read Let $y = k_1 + \dfrac{k_2}{x}$, where $k_1$ and $k_2$ a
2009-II-15
Ans: D
$\begin{array}{cl}
& c(b-a) \\
\approx &
… Read $\begin{array}{cl}
& c(b-a) \\
\approx &
2009-II-16
Ans: A
… Read Let $\theta$ be the angle of depression of $Q$ from $P$
2009-II-17
Ans: B
The length of a side of the base square
… Read The length of a side of the base square
$\begin{array}
2009-II-18
Ans: B
Let $h\text{ cm}$ be the height of the circular cone. S
… Read Let $h\text{ cm}$ be the height of the circular cone. S
2009-II-19
Ans: A
Let
… Read Let
$\begin{array}{c|c|c|c}
& \text{sphere }
2009-II-20
Ans: C
$\begin{array}{rcl}
\pi r^2 \times \dfrac{120^\ci
… Read $\begin{array}{rcl}
\pi r^2 \times \dfrac{120^\ci
2009-II-21
Ans: D
$\begin{array}{rcl}
2AB & = & 3 BC \\
\dfra
… Read $\begin{array}{rcl}
2AB & = & 3 BC \\
\dfra
2009-II-22
Ans: B
Consider $\Delta ACD$,
… Read Consider $\Delta ACD$,
$\begin{array}{rcl}
\cos 60
2009-II-23
Ans: B
… Read Add a point $M$ on $AB$ such that $CM\perp AB$, and add a
2009-II-24
Ans: C
Since $A+B=90^\circ$, then $B = 90^\circ – A$.
… Read Since $A+B=90^\circ$, then $B = 90^\circ – A$.
2009-II-25
Ans: D
Since $AB:BC:AC = 3:4:5$, then let $AB=3k$, $BC= 4k$ a
… Read Since $AB:BC:AC = 3:4:5$, then let $AB=3k$, $BC= 4k$ a
2009-II-26
Ans: A
Consider $\Delta BCE$, since $BC=CE$, then $\angle C
… Read Consider $\Delta BCE$, since $BC=CE$, then $\angle C
2009-II-27
Ans: A
$\begin{array}{rcl}
(n-2)\times 180^\circ &
… Read $\begin{array}{rcl}
(n-2)\times 180^\circ &
2009-II-28
Ans: C
… Read The extension of $AB$ intersects $CE$ at $D$. Since $A
2009-II-29
Ans: A
Mark $A$ on the given figure as shown below.
… Read Mark $A$ on the given figure as shown below.
Rotate the
2009-II-30
Ans: D
Note that the distance between $A$ and the line $x=1$ i
… Read Note that the distance between $A$ and the line $x=1$ i