Which of the following are the appropriate LaTeX: f\left(x\right)f ( x ) and LaTeX: g\left(x\right)g ( x ), for LaTeX: H\left(x\right)=\cos\left(2x^2-1\ri ght)H ( x ) = cos ⁡ ( 2 x 2 − 1 ) for LaTeX: H\left(x\right)=\left(f\:\circ\:g\r ight)\left(x\right)H ( x ) = ( f ∘ g ) ( x )? Group of answer choices