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Question
If y = `"sin"^-1 (- 1/(1 + "x"^2)) , "then" "dy"/"dx"` is equal to:
Options
`- 1/"1 + x"^2`
`- 2/"1 + x"^2`
`2/"1 + x"^2`
`"2x"/"1 + x"^2`
MCQ
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Solution
`2/"1 + x"^2`
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Number System (Entrance Exam)
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