Sb Sangpi
Reputation
393
Top tag
Next privilege 500 Rep.
Access review queues
 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 May 1 asked Solve for $x$ in $[-\pi,\pi]$ May 1 awarded Enthusiast Apr 30 accepted How to differentiate $x+\sqrt{1-x^2}$ Apr 29 accepted Find the value of $k$ when $x=1$ 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 asked How to differentiate $x+\sqrt{1-x^2}$ 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