If `y=tan^(-1)x` ,then `(dy)/(dx)` is

If y=x^(tan ^(-1)x) ,then (dy)/(dx)=

if y=tan(sin^(-1)x) then (dy)/(dx)

If y=sec(tan^(-1)x) ,then (dy)/(dx) at x=1 is equal to (1)(1)/(2)(2)1(3)sqrt(2)(4)(1)/(sqrt(2))

If y/x=tan^(-1)(x/y) then (dy)/(dx)=

if y=sec(tan^(-1)x)then(dy)/(dx) is

If y=sec(tan^(-1)x), then (dy)/(dx) at x=1 is equal to: (1)/(sqrt(2))(b)(1)/(2)(c)1(d)sqrt(2)

If y=sec(tan^(-1)x), then (dy)/(dx)atx=1 is (a) (cos pi)/(4)(b)(sin pi)/(2)(c)(sin pi)/(6)(d)(cos pi)/(3)