If `f(x) = x^(2) + kx + 1` is increasing function in the interval [ 1, 2], then least value of k is –

Find the least value of k for which the function x^(2) + kx + 1 is an increasing function in the interval 1 lt x lt 2 .

The function f(x)=x^2-x+1 is increasing and decreasing in the intervals

The function f(x)=x^2-x+1 is increasing and decreasing in the intervals

The function f(x)= 2x^(3)-15x^(2) +36x + 1 is increasing in the interval-

The function f(x) = x^2 is increasing in the interval

The function f(x)=2x^(3)-15x^(2)+36x+1 is increasing in the interval

If the function f(x)=2x^(2)+3x-m log x is monotonic decreasing in the interval (0,1) then the least value of the parameter m is

Show that the function f(x) = 1/(1+x^(2)) is increasing function in the interval (- infty, 0] .

If the function f(x)=x^(2)-kx+5 is increasing on [2,4], then