COMEDK Exam 2016 Solved Paper
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Question : 158 of 180
Marks:
+1,
-0
If cos − 1 x = α , ( 0 < x < 1 ) s i n − 1 ( 2 x √ 1 − x 2 ) + s e c − 1 (
) =
tan − 1 ( 2 x ) =
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