1
IIT-JEE 1986
MCQ (Single Correct Answer)
+2
-0.5
The principal value of $${\sin ^{ - 1}}\left( {\sin {{2\pi } \over 3}} \right)$$ is
A
$${ - {{2\pi } \over 3}}$$
B
$${{{2\pi } \over 3}}$$
C
$${{{4\pi } \over 3}}$$
D
none
2
IIT-JEE 1983
MCQ (Single Correct Answer)
+1
-0.25
The value of $$\tan \left[ {{{\cos }^{ - 1}}\left( {{4 \over 5}} \right) + {{\tan }^{ - 1}}\left( {{2 \over 3}} \right)} \right]$$ is
A
$${{6 \over 17}}$$
B
$${{7 \over 16}}$$
C
$${{16 \over 7}}$$
D
none
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