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Mathematics
Mathematics
Problem
Justify that the principal value of
arcsin
(
−
3
2
)
\arcsin\!\left(-\dfrac{\sqrt3}{2}\right)
arcsin
(
−
2
3
)
is
−
π
3
-\dfrac{\pi}{3}
−
3
π
and not
2
π
3
\dfrac{2\pi}{3}
3
2
π
.
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