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Mathematics
Mathematics
Problem
Find the values of the following: 12.
cos
−
1
1
2
+
2
sin
−
1
1
2
\cos ^{-1} \frac{1}{2}+2 \sin ^{-1} \frac{1}{2}
cos
−
1
2
1
+
2
sin
−
1
2
1
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