Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Statement I A line
L
L
L
is perpendicular to the plane
3
x
−
4
y
+
5
z
=
10
3x - 4y + 5z = 10
3
x
−
4
y
+
5
z
=
10
. Statement II Direction cosines of
L
L
L
be
⟨
3
5
2
,
−
4
5
2
,
1
2
⟩
.
\left\langle \frac{3}{5\sqrt{2}}, -\frac{4}{5\sqrt{2}}, \frac{1}{\sqrt{2}} \right\rangle.
⟨
5
2
3
,
−
5
2
4
,
2
1
⟩
.
Browse the problem library