1.

If y = "Cos"^(-1) ((x - x^-1)/(x + x^-1)) then (dy)/(dx) =

Answer»

`(-2)/(1 + x^2)`
`2/(1 +x^2)`
`1/(1 + x^2)`
`(-1)/(1 + x^2)`

ANSWER :A


Discussion

No Comment Found