Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The angle between the lines
2
x
−
y
+
5
=
0
2x - y + 5 = 0
2
x
−
y
+
5
=
0
and
3
x
+
y
+
4
=
0
3x + y + 4 = 0
3
x
+
y
+
4
=
0
is- (1)
30
∘
30^\circ
3
0
∘
(2)
90
∘
90^\circ
9
0
∘
(3)
45
∘
45^\circ
4
5
∘
(4)
60
∘
60^\circ
6
0
∘
Browse the problem library