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Mathematics
Mathematics
Problem
Calculate
cos
(
17
π
3
)
\cos\left(\dfrac{17\pi}{3}\right)
cos
(
3
17
π
)
. a)
−
3
2
-\dfrac{\sqrt{3}}{2}
−
2
3
b)
1
2
\dfrac{1}{2}
2
1
c)
−
1
2
-\dfrac{1}{2}
−
2
1
d)
3
2
\dfrac{\sqrt{3}}{2}
2
3
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