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seen May 4 at 12:23

May
4
asked Show that $C(n,k) = C(n-1,k) + C(n-1,k-1)$
Dec
10
asked Find and draw the image of the triangle with vertices (2,1), (1, 2), (2,2)
Dec
9
asked Row Reduction with Cofactor Expansion
Dec
8
asked 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
asked Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
Nov
19
asked Let $M_{2\times 2}$ be the vector space of all $2\times 2$ matrices. Show that the set of non-singular matrices is NOT a subspace.
Nov
7
asked 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
7
asked Find a basis for the set of vectors in $\mathbb{R}^4$ in the subspace (hyperplane) $x_1 +x_2 + 2x_3 + x_4 = 0, x_1 + 2x_2-x_3=0$
Nov
7
asked How can I prove a basis (for RowA, NulA, ColA, or NulA^T) with orthogonality conditions?
Nov
7
asked Give an example of a $3$-dimensional subspace of $P_4$ which contains the polynomials…
Oct
17
asked Explain why a determinant function is a cubic polynomial
Oct
17
asked Given a parallelepiped, how do I find the determinant given vertices?
Oct
17
asked Determinants of Variables
Oct
16
asked Need help with Determining a formula for a Resistance using a linear system for loop currents
Oct
3
asked Find a $4\times 4$ matrix $A$ where $A\neq I$ and $A^2 \neq I$, but $A^3 = I$.
Oct
3
asked 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?
Sep
12
asked 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 $(1,-1)$
Sep
12
asked Show that the transformation T defined by $T(x_1, x_2)\; = \;… $ is NOT linear.
Sep
11
asked How do I determine linear independence when I don't know the values of the vectors?
Sep
11
asked How to solve / set up three equations three unknowns with a matrix?