# Panayiotis

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bio website location age member for 1 year, 11 months seen Dec 29 '13 at 17:05 profile views 25

highschool student

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 Feb26 awarded Popular Question Apr28 awarded Yearling Jul4 accepted Maximum point of a polar function Jun21 comment Maximum point of a polar function Ohh, I mixed up $r$ and $y$ right there. So $\frac{d}{d\theta}\left (a^2 \cos{2 \theta} \cos^2{\theta} \right )=0$ will end up giving me $r=a$ right? Jun21 comment Maximum point of a polar function From the point $O$ to the point where $\theta = 0$ I want that length on the x-axis. Isn't that the maximum value of $r$? Jun21 asked Maximum point of a polar function Jun20 comment Plotting a complex argument arc +1 I like your answer but it seems like too much work for the time I can spend on this part of an exercise Jun20 asked Plotting a complex argument arc Jun15 accepted Integral of $\int 2\,\sin^{2}{x}\cos{x}\,dx$ Jun15 asked Integral of $\int 2\,\sin^{2}{x}\cos{x}\,dx$ Jun14 accepted Expressing $\sin(2x)-8\cos(2x)$ as a single sine function Jun14 comment Expressing $\sin(2x)-8\cos(2x)$ as a single sine function Ah, got it. Thanks a lot guys for your help! Jun14 comment Expressing $\sin(2x)-8\cos(2x)$ as a single sine function So now I am at $\sqrt{65}\sin{(2x+a)}$, How would I go for finding that a? Jun14 comment Expressing $\sin(2x)-8\cos(2x)$ as a single sine function So in a case like $-2\sin(3x)-5\cos(3x)$ would I use $\sqrt{(29)}$? Jun14 comment Expressing $\sin(2x)-8\cos(2x)$ as a single sine function How did you arrive to $\sqrt{65}$? Jun14 asked Expressing $\sin(2x)-8\cos(2x)$ as a single sine function Jun14 accepted Method for sketching $y = (1 – 3t + 2t^{2})e^{3t}$ Jun14 revised Method for sketching $y = (1 – 3t + 2t^{2})e^{3t}$ added 91 characters in body Jun14 comment Method for sketching $y = (1 – 3t + 2t^{2})e^{3t}$ This was a past examination question, the only thing I am allowed to use is a calculator Jun14 asked Method for sketching $y = (1 – 3t + 2t^{2})e^{3t}$