165 reputation
7
bio website
location
age
visits member for 2 years, 3 months
seen May 4 at 12:23

May
4
accepted Show that $C(n,k) = C(n-1,k) + C(n-1,k-1)$
Dec
12
accepted Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
Nov
19
accepted Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
Nov
12
accepted Let $B = ${$1-t^2, t-t^2, 2-2t+t^2$}. Check that $B$ is a basis for $P_2$ and find $[3+t-6t^2]_B$
Nov
12
accepted How can I prove a basis (for RowA, NulA, ColA, or NulA^T) with orthogonality conditions?
Nov
7
accepted Give an example of a $3$-dimensional subspace of $P_4$ which contains the polynomials…
Nov
7
accepted Find a basis for the set of vectors in $\mathbb{R}^4$ in the subspace (hyperplane) $x_1 +x_2 + 2x_3 + x_4 = 0, x_1 + 2x_2-x_3=0$
Oct
17
accepted Determinants of Variables
Oct
17
accepted Explain why a determinant function is a cubic polynomial
Oct
17
accepted Need help with Determining a formula for a Resistance using a linear system for loop currents
Oct
3
accepted How do I determine linear independence when I don't know the values of the vectors?
Oct
3
accepted Show that the transformation T defined by $T(x_1, x_2)\; = \;… $ is NOT linear.
Oct
3
accepted A linear transformation $T$ is defined by $T(x_1, x_2)$ Find the image of the line that passes through the origin and point $(1,-1)$
Oct
3
accepted How to solve / set up three equations three unknowns with a matrix?
Oct
3
accepted What do I do if I've been asked to find the preimage of a vector, but the inverse of the Transformation Matrix doesn't exist?