If `f(x) = 1/2 (3^x + 3^(-x)), g(x) = 1/2 (3^x - 3^(-x))`, then `f(x) \ g(y)+f(y) \ g(x)=`

If f(x) = 3x + 2 & g(x) = -3x – 1. Find f(g(-3))

If f(x)=2x-1, g(x)=x^(2) , then (3f-2g)(x)=

If f (x) = 3x -1, g (x) =x ^(2) + 1 then f [g (x)]=

If f (x) = 3x -1, g (x) =x ^(2) + 1 then f [g (x)]=

If f(x) = x^(2) and g(x) = (1)/(x^(3)) . Then the value of (f(x)+g(x))/(f(-x)-g(-x)) at x = 2 is

If f(x) = x^(2) and g(x) = (1)/(x^(3)) . Then the value of (f(x)+g(x))/(f(-x)-g(-x)) at x = 2 is

If f(x)=2 x^(2)+x+1 and g(x)=3 x+1 then f o g(2)

If f(x) =log e (1 + x)/(1 - x) and g(x) = (3x + x^3)/(1 + 3x^2) , then prove that f[g(x)] = 3 cdot f(x) .

If f(x) = 3x + 1 and g(x) = x^(2) - 1 , then (f + g) (x) is equal to