If Mx(t)+(3/4+1/4e^t)^20 then find the Mean and Variance of X
[ [-\sqrt{338}, \sqrt{338}] ]
133089
458853
729245
308750
4758626
3259874
1535206
364!/(342!*365^22)
t^3-4t^2-4t-16 ,in range [-4,6 ] integrate
862334
A alone can finish a task in 20 days, while Balone can finish it in 15 days. They togetherwork for 5 days and stop, then the rest ...
[ y’ = 7\sqrt{3} + 14 \sin(x) ]
-1/3*cos(1/3*x)
1/3*cos(1/3*x)
