2020-M1-01
Ans: (a) $1-4x+6x^2-4x^3+x^4$ (b) $\dfrac{1}{2}$
… Read - By the b
HKDSE-M2
2020-M2-02
Ans: $\dfrac{3}{8}$
… Read $\begin{array}{cl}
& f'(2) \\
=
2020-M2-03
-
-
$\begin{array}{cl}
& \tan 3x \\
= & \tan (x+2x) \
-
2020-M2-04
Ans: (a) $\dfrac{\theta}{2} – \dfrac{\sin 2\theta
… Read 2020-M2-05
Ans: (b) $\dfrac{387}{310}$
… Read - Let $P(n)$ be the given statem
2020-M2-06
Ans: (a) Yes (b) $5$ square unit per second
… Read - Sketch a graph acc
2020-M2-07
Ans: (a) $y=-x^2+8x-5$ (b) (i) $(7,2)$ (ii) $x-6y+5=0$
… Read -
$\b
2020-M2-08
Ans: (a) $a=2$, $b=-3$, $c=-5$ (b) (i) $\begin{pmatrix} 0 &
… Read 2020-M2-09
Ans: (a) $y=x+20$, $x=4$ (b) $\dfrac{384}{(x-4)^3} +\dfr
… Read 2021-M2-01
Ans: $f'(x) = \dfrac{-6x}{(3x^2+4)^2}$
… Read $\begin{array}{
2021-M2-02
Let $P(n)$ be the given statement.
… Read For $n=1$,
$\begin{arra
2021-M2-03
Ans: (a) $6$ (b) $106\ 240$
… Read - By the binomial theorem, we have
$
2021-M2-04
Ans: (b) $\dfrac{\pi}{12}$ or $\dfrac{\pi}{8}$ or $\dfra
… Read 2021-M2-05
Ans: (a) $x=1$, $y=x+1$ (b) $\dfrac{d}{dx}r(x) = \dfrac{x
… Read 2021-M2-06
Ans: (a) $5$ (b) $\dfrac{e^4-3}{2}$
… Read This is out of syllabus
2021-M2-07
Ans: (a) $x(\ln x)^2 -2x \ln x +2x +C$ (b) $\pi[(\ln 2)^2-2\l
… Read 2021-M2-08
Ans: (a) $d=3$, $\{ (3-32t, 13t-1, t) | t \in \mathbb{R} \}$ (
… Read 2021-M2-09
Ans: (a) (i) $\sec \theta$ (ii) $\ln( \sec\theta +\tan \the
… Read 2021-M2-10
Ans: (a) $12$ (b) (i) No (ii) $42$ unit per minute
… Read Sketch a gra
2021-M2-11
Ans: (b) (i) $\dfrac{5\pi}{6}$ (iii) $\dfrac{-1}{2^{556
… Read