Given the function `f(x)=(x+1) (x-1)`
Find `f(2x), 2f(x), f(x^(2)), [f(x)]^(2)`.

Given the function f(x) = x^(2) + 2x + 5 . Find f(-1), f(2), f(5).

For the function f(x) = 2 . Find lim_(x to 1) f(x)

If f(x)=(x+1)/(x-1), x ne 1 , find f(f(f(f(2)))))

If f(x)=(x+1)/(x-1), x ne 1 , find f(f(f(f(f(2)))))

A function f(x) is defined as f(x)=x^2+3 . Find f(0), F(1), f(x^2), f(x+1) and f(f(1)) .

Let f_(1) (x) and f_(2) (x) be twice differentiable functions where F(x)= f_(1) (x) + f_(2) (x) and G(x) = f_(1)(x) - f_(2)(x), AA x in R, f_(1) (0) = 2 and f_(2) (0) = 1. "If" f'_(1)(x) = f_(2) (x) and f'_(2) (x) = f_(1) (x) , AA x in R . then the number of solutions of the equation (F(x))^(2) =(9x^(4))/(G(x)) is...... .

The function f(x) given by f(x)=sin^(-1)((2x)/(1+x^(2))) is

If f(x)=2x-3, find f(0),f(1),f(-2)andf((x+3)/(2)) .