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Question
`"sin" ["cot"^-1 {"cos" ("tan"^-1 "x")}] =` ____________.
Options
`sqrt(("x"^2 + 1)/("x"^2 + 2))`
`sqrt(("x"^2 - 1)/("x"^2 - 2))`
`sqrt(("x" - 1)/("x" - 2))`
`sqrt(("x" + 1)/("x" + 2))`
MCQ
Fill in the Blanks
Solution
`"sin" ["cot"^-1 {"cos" ("tan"^-1 "x")}] =``underline(sqrt(("x"^2 + 1)/("x"^2 + 2))`.
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