For which pair of functions is open paren f circ g close paren times x is equal to x ?
A
f of x is equal to 2 over x and g of x is equal to 2 over xB
f of x is equal to the fraction with numerator x minus 2 and denominator 3 and g of x is equal to 2 minus 3 xC
f of x is equal to 1 half x minus 2 and g of x is equal to 1 half x plus 2D
f of x is equal to x squared and g of x is equal to 1 over x