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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 $f(x,y) = c(y-x)^2, 0<x<y<1$ and $0, elsewhere$ for some constant $c > 0$.
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 $y'+y=\frac1x$