If `f(X)=((A^2-1)/(A^2+1))x^3-3x+e^(pi/2)` is a decreasing function of `x` in R then the set of possible values of A

If f(x)=(p^2-1)/(p^2+1) x^3-3x + log 2 is a decreasing function of x.in, R then the set of possible values of p (independent of x) is

If f(x)=(p^(2)-1)/(p^(2)+1)x^(3)-3x+log2 is a decreasing function of x in,R then the set of possible values of p (independent of x) is

If f(x)=(a^2-1)/(a^2+1)x^3-3x+2log_e5 is a decreasing function of x for all x in R then the set of possible values of a is

If quad f(x)=(2)/(sqrt(3))tan^(-1)((2x+1)/(sqrt(3)))-ln(x^(2)+x+1)+(k^(2)-5k+3)x+10 is a decreasing function for all x in R .then possible value of k is

If f(x)=2x^3+9x^2+lambdax+20 is a decreasing function fo x in the largest possible interval (-2,-1) then lambda =

If f(x)=2x^3+9x^2+lambdax+20 is a decreasing function fo x in the largest possible interval (-2,-1) then lambda =

If f(x) = x^(3) + 4x^(2) + lambda x + 1 is a monotonically decreasing function of x in the largest possible interval (-2, -2/3). Then

If f(x)=x^(3)+4x^(2)+lambdax+1 is a monotonically decreasing function of x in the largest possible interval (-2,-2//3) . Then

If f(x)=x^3+4x^2+ax+5 is a monotonically decreasing function of x in the largest possible interval (-2,-2//3), then the value of a is

If f(x)=x^3+4x^2+ax+5 is a monotonically decreasing function of x in the largest possible interval (-2,-2//3), then the value of a is