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Sep
28
accepted Calculating $\lim_{x\to-\infty}\left(\sqrt{4x^2-6}-\sqrt{4x^2+x}\right)$
Sep
27
accepted Solving $\lim_{x\to0}\frac{1-\sqrt{\cos x}}{x^2}$
Sep
27
accepted Evalutating $\lim_{x\to0}\frac{1-\cos x}{x^2}$
Sep
27
accepted Calculating $\lim_{x\to 0}\frac{\sec (x)-1}{x^2\sec(x)}$
Sep
26
accepted Why is $|x| = -x$ in $\lim_{x\to-\infty}\frac{3-x}{\sqrt{2x^2-1}}$?
Sep
25
accepted Solving $\lim_{x\to0}\frac{x}{\sqrt{1-3x}-1}$ without L'Hopital
Sep
22
accepted Solving $\lim _{x\to 1}\left(\frac{1-\sqrt[3]{4-3x}}{x-1}\right)$
Sep
22
accepted Solving $\lim_{x \to 4}\frac{3-\sqrt{5+x}}{1-\sqrt{5-x}}$ without L'Hopital.
Aug
10
accepted Getting the quadratic function given the vertex and one point.
Jul
13
accepted Finding the acute angle between the planes $x-3y+2z=14$ and $-x+y+z=10$
Jul
13
accepted Having a plane equation equaled to zero for calculating its angle with another plane
Jul
13
accepted The intersection line between $2x-5y+z=0$ and $y=0$
Jul
13
accepted What does it matter that this angle is the smallest between these two vectors?
Jul
12
accepted Finding the intersection point between two lines using a matrix
Jun
15
accepted Getting the number of significant digits in a multiplication/division.
Jun
14
accepted Get the mass of air given the dimensions of a room.
Oct
24
accepted Does the line $(2,1,1)+t(-3,1,5)$ live within the plane $31x+3y+18z=62$?
Oct
24
accepted The normal equation of the plane that contains the line $(1,1,1) + t(-2,0,3)$
Oct
24
accepted Why isn't the orthogonal vector to a direction vector of a plane not necessarily perpendicular to such plane?
Oct
3
accepted Deriving $\frac{8}{\sqrt{x-2}}$