If `alpha` is only real root ofthe equation `x^3 + (cos1) x^2 + (sin1) x + 1=0`, then `(tan^-1 alpha+tan^-1 1/alpha)` canot be equal to-

If alpha is the only real root of the equation x^3 + bx^2 + cx + 1 = 0 (b < c) , then the value of tan^-1 alpha+ tan^-1 (alpha^-1) is equal to :

If alpha is the only real root of the equation x^3 + bx^2 + cx + 1 = 0 (b < c) , then the value of tan^-1 alpha+ tan^-1 (alpha^-1) is equal to :

If alpha is the only real root of the equation x^3 + bx^2 + cx + 1 = 0 (b < c) , then the value of tan^-1 alpha+ tan^-1 (alpha^-1) is equal to :

If alpha is the only real root of the equation x^(3)+bx^(2)+cx+1=0(b

If alpha is the only real root of the equation x^(3) + bx^(2) + cx + 1 = 0 (b lt c) , then find the value of tan^(-1) alpha + tan^(-1) (alpha^(-1))

If alpha is a real root of the equation x^(2)+3x-tan2=0 then cot^(-1)alpha+"cot"^(-1)1/(alpha)-(pi)/2 can be equal to

If alpha is a real root of the equation x^(2)+3x-tan2=0 then cot^(-1)alpha+"cot"^(-1)1/(alpha)-(pi)/2 can be equal to

If alpha and beta are roots of the equation x^(2)+5|x|-6=0, then the value of |tan^(-1)alpha-tan^(-1)beta| is