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 2d answered Determine whether $w$ is in the $Span\{v_1, v_2, v_3\}$ 2d answered find integral $\int_{1}^{-1} \sin\left(x^3\right) dx$ Apr 22 answered Predicting values based on given data Apr 22 answered Confusion about elements in fields, like -1 in Z5 Apr 22 answered The functional equation and differentiability Apr 22 answered Solve for $\alpha$: $P = \frac{1}{\sigma}\displaystyle\int_{0}^{\alpha} \exp (\frac{ -2 x^{\beta}}{\sigma} ) dx$ Apr 22 answered compute probability density function of a bivariate function without sampling Apr 20 answered Let $(X, Y )$ be a random pair with the density $f(x,y) = c(y-x)^2, 0 0$. Apr 15 answered Optimization question related to calculus. Apr 14 answered Prove that the $c_{n}$ in $\frac{1}{1-z-z^{2}}=\displaystyle\sum_{n=0}^{\infty}c_{n}z^{z}$ satisfy a Fibonacci-like recurrence relation Apr 14 answered Biased coin toss problem - Understanding a problem correctly Apr 14 answered Eliminating Sine Apr 13 answered How to evaluate the integral $\int_0^5 3x^2 dx$? Apr 12 answered solve $\sin 2x + \sin x = 0$ using addition formula Apr 12 answered Linear span of subspaces Apr 12 answered How many non-negative integer solutions of $x_1 + x_2 + x_3 + x_4 = 28$ are there with $x_{1} \leq 6, x_{2} \leq 10, x_{3} \leq 15, x_{4} \leq21$? Apr 12 answered Show $L = \int_a^b\sqrt{1+[f'(x)]^2}dx$ Apr 12 answered What is the domain and range of the sum of two random variables? Apr 11 answered Finding all primary solutions of $2 \cos3x=1$ in the interval $[0,2\pi]$ Apr 11 answered Interesting power series for $y'+y=\frac1x$