1.

The derivative of `sec^(-1)((1)/(2x^(2)-1))` with respect to `sqrt(1-x^(2))" at "x=1`, isA. 2B. -2C. non-exisentD. none of these

Answer» Correct Answer - C
It is evident that `z=sqrt(1-x^(2))` is not differentiable at
`x=+-1`
So, `(dz)/(dx)` does not exist at `x=+-1.`


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