If `[(1,-1,x),(1,x,1),(x,-1,1)]` has no inverse, then the real value of `x` is

If [[x, 1, 1], [2, 3, 4], [1, 1, 1]] has no inverse, then x=

If f(x)=(x^2-1)/(x^2+1) , for every real x , then the maximum value of f

The matrix A=[{:(1,3,2),(1,x-1,1),(2,7,x-3):}] will have inverse for every real number x except for

If |{:(x+1,1,1),(1,x+1,1),(-1,1,x+1):}|=0 , find the value of 'x'.

If the equation (x^(2)+a|x|+a+1)(x^(2)+(a+1)|x|+a)=0 has no real root,then the range of values of a is

Let y^(2) = ((x+5)(x-3))/(x-1) , then all the real values of x, for which y has non-zero real values , are :

Let y=sqrt(2/(x^(2)-x+1)-1/(x+1)-(2x+1)/(x^(3)+1)) , find all the real values of x for which y takes real values.

If (x^(3)+x^(2)+x+1)/(x^(3)-x^(2)+x-1)=(x^(2)+x+1)/(x^(2)-x+1), then the number of real value of x satisfying are

If the two roots (a-1)(x^(4)+x^(2)+1)+(a+1)(x^(2)+x+1)^(2)=0 are real and distinct,then the set of all values of 'a ' is.....