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8h
awarded  Popular Question
Apr
11
awarded  Nice Question
Feb
6
awarded  Popular Question
Jan
13
awarded  Yearling
Dec
12
awarded  Notable Question
Oct
25
comment Does the line $(2,1,1)+t(-3,1,5)$ live within the plane $31x+3y+18z=62$?
@Galc127: The formula you posted, is that for calculating the orthogonal projection? In that case, don't I have to multiply the result by $(31,3,18)$, and then calculate the magnitude of the result?
Oct
24
accepted Does the line $(2,1,1)+t(-3,1,5)$ live within the plane $31x+3y+18z=62$?
Oct
24
asked 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
24
comment Why isn't the orthogonal vector to a direction vector of a plane not necessarily perpendicular to such plane?
Would the same apply parallel vectors? I mean, if I find a vector that is parallel to that line's direction vector, would it also be parallel to the plane?
Oct
24
asked Why isn't the orthogonal vector to a direction vector of a plane not necessarily perpendicular to such plane?
Oct
24
asked The normal equation of the plane that contains the line $(1,1,1) + t(-2,0,3)$
Oct
14
awarded  Popular Question
Oct
3
accepted Deriving $\frac{8}{\sqrt{x-2}}$
Oct
2
awarded  Notable Question
Oct
2
asked Deriving $\frac{8}{\sqrt{x-2}}$
Oct
1
comment Why $(-1 \cdot h) = -1$ when $h$ approaches $0$?
By the way, if $h \not = 0$, how come the denominator is $(x-1)^2$? I had said that "$h$ is practically $0$" but I'm not that convinced anymore.
Oct
1
accepted Why $(-1 \cdot h) = -1$ when $h$ approaches $0$?
Oct
1
asked Why $(-1 \cdot h) = -1$ when $h$ approaches $0$?