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Aug
4
accepted Find the probability of three tosses of a fair coin
Aug
4
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
Aug
4
asked Find the probability of three tosses of a fair coin
Aug
4
accepted Find the probability of the the sum
Aug
4
asked Find the probability of the the sum
Jul
29
accepted Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$
Jul
28
awarded  Self-Learner
Jul
27
awarded  Teacher
Jul
27
reviewed Approve Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$
Jul
27
answered Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$
Jul
27
reviewed Approve Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$
Jul
27
comment Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$
oh!....so sorry! my fault!!!!i didn't see.
Jul
27
asked Evaluating $\int ^\frac{\pi}{2}_{0} \sin\left(2x+\frac{\pi}{4}\right)\ dx$
Jul
17
accepted Determining the derivative of $e^{5x}\tan(2x)$
Jul
17
accepted Find the approximate change in $y$ as $x$ increases from 2 to 2.02
Jul
17
asked Find the approximate change in $y$ as $x$ increases from 2 to 2.02
Jul
16
accepted The line with equation $y=4x+c$ is a tangent to the curve with equation $y=x^2-x-5$
Jul
16
asked The line with equation $y=4x+c$ is a tangent to the curve with equation $y=x^2-x-5$
Jul
15
awarded  Quorum
Jul
15
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?