For what value of x is `|1+x|=|1-x|`?

Let f(x)=(alphax)/(x+1),x ne -1 . Then, for what values of alpha is f[f(x)]=x?

Let f(x)=(alphax)/(x+1),x ne -1 . Then, for what values of alpha is f[f(x)]=x?

What is the value of x if |x-1|+|x|=2:

For what value of a is this function f(x){:{((x^4-1)/(x-1)if,x ne 1),(aif,x=1):} continuous at x=1?

For what value of k is the function f(x)={(x^2-1)/(x-1), ,x!=1,k,x=1" continuous at"x=1?

For what value of k is the function f(x)={(x^2-1)/(x-1),\ \ \ x!=1k ,\ \ \ x=1 continuous at x=1 ?

f(x) = (alpha x)/(x + 1) (x ne -1) , then for what value of alpha , f{f(x)} = x?

For what value of alpha is this function f(x)={{:((x^(4)-1)/(x-1)", ""if "xne1),(alpha", ""if "x=1):} continuous at x = 1?

If x^(4) + (1)/( x^4) = 98 and x gt 1 , then what is the value of x - (1)/( x)?