373 reputation
319
bio website sbsangpi.com
location Melbourne, Australia
age 20
visits member for 2 years, 11 months
seen Feb 27 at 12:08

About me:http://en.wikipedia.org/wiki/User:Sbsangpi
Visit www.sbsangpi.com (only in Myanmar Language)


May
13
comment Find the value of $A$, $n$ and $b$ if $y=A\sin(nt)+b$ has range $[2,8]$ and period $\frac{2\pi}{3}$.
sorry, no. I'm confuse. thx
May
13
comment How to sketch $y=2\tan(x+\frac{\pi}{4})$ , $x \in (0,2\pi)$
yes! please provide me solution step by step. Appreciate it!
May
13
comment How to sketch $y=2\tan(x+\frac{\pi}{4})$ , $x \in (0,2\pi)$
yes! sorry for my lack of maths knowledge. thx
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
sorry. You are right.It is totally different! thx
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
yea.when I read your answer, I understand it but compare to the answer graph.It make me confuse, the answer its the graph. thx@Arturo Magidin
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
thx for that! Does your answer look the same as my graph. $y=3sin(2\theta)$ its not in the graph. thx
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
sorry for that, intercepts for the graph. thx!
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
yea, but can you please show me the working out. Sorry I'll be able to work out other questions as well. thx so much
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
yea, exactly. Sorry for my lucky of maths.
May
9
comment How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
I think, it is almost the same? or totally different?
May
8
comment List the $x$-axis intercepts for this trigonometric function
yea! i think $cosx$=$\frac{\sqrt{2}}{\sqrt{2}}$ and its show in the unit cirle $\frac{7\pi}{4}$
May
2
comment Calculate all the values of $x$ between $0$ and $2\pi$, without using calculator.
the answer is $\frac{\pi}{8}$ but I got $\frac{\pi}{4}$
May
1
comment Solve for $x$ in $[-\pi,\pi]$
@TheChaz so does the $x$ mean green lines from the above graph.thx
May
1
comment Solve for $x$ in $[-\pi,\pi]$
ok! i got it one, but the other is when I look to $\frac{-\sqrt{3}}{2}$ it is not cos anymore, it is in $sin$ area.
Apr
29
comment How to differentiate $x+\sqrt{1-x^2}$
yea. $u=(1-x^2)^\frac{1}{2}$ and $y=u^\frac{1}{2}$ , it is right?
Apr
29
comment Find the value of $k$ when $x=1$
still $x=1$ is $\frac{-3k}{4}$ i can't get $-\frac{8}{3}$
Apr
28
comment Find the value of $k$ when $x=1$
edited, still wrong?
Apr
28
comment Find the value of $k$ when $x=1$
edited, still can't get answer! thx
Apr
28
comment Find the value of $k$ when $x=1$
edited mistake, still wrong?
Apr
22
comment Find $g'(3)$ if $g(x)$
sorry 4 another question,i did this another question $\frac{3x+1}{f(x)}$ it doesn't work. can u help? thx