渐近。如果f(n)=θ(g(n))和g(n)=θ(h(n)),那么为什么h(n)=θ(f(n))

it is f(n)=theta(h(n)) as theta is transitive. But Can any one explain why h(n)=theta(f(n)). it is f(n)=theta(h(n)) as theta is transitive.