heuristic is h3= (h1*h2 ) admissible if h1 and h2 are admissible?

Question

if h1 and h2 are admissible HEURISTIC is h3=(h1* h2) also admissible if h1,h2 are admissible.I am not sure i understand how it working im sure that h3=(h1+h2)/2 are admissible