If `x<0,t h e ntan^(-1)x` is equal to

If x<0,t h e ntan^(-1)x is equal to -pi+cot^(-1)1/x (b) sin^(-1)x/(sqrt(1+x^2)) -cos^(-1)1/(sqrt(1+x^2)) (d) -cos e c^(-1)(sqrt(1+x^2))/x

If x<0,t h e ntan^(-1)x is equal to -pi+cot^(-1)1/x (b) sin^(-1)x/(sqrt(1+x^2)) -cos^(-1)1/(sqrt(1+x^2)) (d) -cos e c^(-1)(sqrt(1+x^2))/x

If x lt 0." then "tan^(-1)x is equal to

If -1 lt x lt 0 , then cos^(-1) x is equal to

If -1 lt x lt 0 , then cos^(-1) x is equal to

If -1 lt x lt 0 , then cos^(-1) x is equal to

If -1 lt x lt 0," then "cos^(-1)x is equal to

If -1lt x lt 0 then tan^(-1) x equals

If -1lt x lt 0 then tan^(-1) x equals

If -1 lt x lt 0 then sin^(-1) x equals-