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Trigonometry Examples
Popular Problems
Trigonometry
Find the Reference Angle 135deg
135
deg
135
deg
Step 1
Since the
angle
135
°
135
°
is in the
second
quadrant
, subtract
135
°
135
°
from
180
°
180
°
.
180
°
−
135
°
180
°
-
135
°
Step 2
Subtract
135
135
from
180
180
.
45
°
45
°
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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