383 reputation
421
bio website sbsangpi.com
location Melbourne, Australia
age 21
visits member for 3 years, 2 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
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
revised How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
added 105 characters in body
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
revised How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
added 38 characters in body
May
9
accepted List the $x$-axis intercepts for this trigonometric function
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
9
asked How to sketch $y=2\cos\,2x+3\sin\,2x$ , $x$ for $[-\pi,\pi]$.
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
8
revised List the $x$-axis intercepts for this trigonometric function
edited tags
May
8
asked List the $x$-axis intercepts for this trigonometric function
May
2
accepted Calculate all the values of $x$ between $0$ and $2\pi$, without using calculator.
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
2
revised Calculate all the values of $x$ between $0$ and $2\pi$, without using calculator.
added 2 characters in body
May
2
asked Calculate all the values of $x$ between $0$ and $2\pi$, without using calculator.
May
1
accepted Solve for $x$ in $[-\pi,\pi]$
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.
May
1
awarded  Critic