Sin¹ [ cos ( sin¹√3/2 ) ]
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Step-by-step explanation:
Explanation:
sin
−
1
(
√
3
2
)
=
θ
XX
means
sin
(
θ
)
=
√
3
2
XXXX
with the restriction that
θ
∈
[
−
π
2
,
π
2
]
The possible triangles with this ratio of
y
to
hypotenuse
(i.e.
sin
) are pictured below:
enter image source here
...but note that only
π
3
falls within the restricted range for
sin
−
1
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