Sb Sangpi
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 Aug4 comment Find the probability of three tosses of a fair coin @GerryMyerson 1/6 and 3/6=1/2 ? it is what u mean? thx Aug4 asked Find the probability of three tosses of a fair coin Aug4 accepted Find the probability of the the sum Aug4 asked Find the probability of the the sum Jul29 accepted Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$ Jul28 awarded Self-Learner Jul27 awarded Teacher Jul27 reviewed Approve Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$ Jul27 answered Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$ Jul27 reviewed Approve Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$ Jul27 comment Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$ oh!....so sorry! my fault!!!!i didn't see. Jul27 asked Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$ Jul17 accepted Determining the derivative of $e^{5x}\tan(2x)$ Jul17 accepted Find the approximate change in $y$ as $x$ increases from 2 to 2.02 Jul17 asked Find the approximate change in $y$ as $x$ increases from 2 to 2.02 Jul16 accepted The line with equation $y=4x+c$ is a tangent to the curve with equation $y=x^2-x-5$ Jul16 asked The line with equation $y=4x+c$ is a tangent to the curve with equation $y=x^2-x-5$ Jul15 awarded Quorum Jul15 comment Find the acute angle of intersection of the curves $y=\cos x$ and $y=e^{-x}$ at the point $(0,1)$. because If i have $-2$ how about that? Jul15 comment Find the acute angle of intersection of the curves $y=\cos x$ and $y=e^{-x}$ at the point $(0,1)$. sorry, how come $\frac{\pi}{4}$ ? thx