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Mathematics
Problem
The obtuse between the line
y
=
−
2
y = -2
y
=
−
2
and
y
=
x
+
2
y = x + 2
y
=
x
+
2
is- (1)
120
∘
120^\circ
12
0
∘
(2)
135
∘
135^\circ
13
5
∘
(3)
150
∘
150^\circ
15
0
∘
(4)
160
∘
160^\circ
16
0
∘
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