Zol Tun Kul
Reputation
1,768
Top tag
Next privilege 2,000 Rep.
 Oct24 accepted Does the line $(2,1,1)+t(-3,1,5)$ live within the plane $31x+3y+18z=62$? Oct24 accepted The normal equation of the plane that contains the line $(1,1,1) + t(-2,0,3)$ Oct24 accepted Why isn't the orthogonal vector to a direction vector of a plane not necessarily perpendicular to such plane? Oct3 accepted Deriving $\frac{8}{\sqrt{x-2}}$ Oct1 accepted Why $(-1 \cdot h) = -1$ when $h$ approaches $0$? Sep20 accepted Proving that $\lim_{x\to3}\frac{x}{4x-9}=1$ Sep19 accepted Proving $\lim_{x\to1}(x^2+3)=4$ Sep7 accepted For what values of $p$ and $b$ is the vector $(b,8,b+7)$ a solution of this system? Sep5 accepted Determining the values of $b$ in $Ax=b$ to have a consistent system. Sep1 accepted Is $A$ invertible if $ABAB^2 = I$? Aug21 accepted Factoring $x^3-8$ by grouping Jul7 accepted Finding two matrices that permit a change of variable eliminating the crossed term. Jul6 accepted Surjective linear transformations: is checking for linear independency enough? Jul6 accepted Gram-Schmidt: Do the sets have some sort of order? Jul5 accepted Calculating an orthonormal base given another base. Jul3 accepted Is this procedure for $5^{300} \bmod 11$ correct? Jun22 accepted How can a subspace have a lower dimension than its parent space? Jun21 accepted Orthogonal complement of a line in $\mathbb{R}^2$ spanned by $(1,2)$ Jun19 accepted About vector orthogonality with itself and implication in a subspace's complement. Jun18 accepted If a vector fulfils one condition in this theorem, does it automatically fulfil both?