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Mathematics
Mathematics
Problem
Calculate
arccos
(
2
2
)
\arccos\left(\dfrac{\sqrt{2}}{2}\right)
arccos
(
2
2
)
and give your answer in degrees. a)
135
∘
135^{\circ}
13
5
∘
b)
60
∘
60^{\circ}
6
0
∘
c)
45
∘
45^{\circ}
4
5
∘
d)
315
∘
315^{\circ}
31
5
∘
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