{"result":{"text":"begin mathsize 14px style r with rightwards harpoon with barb upwards on top equals open parentheses negative 5 i with hat on top plus 2 j with hat on top plus 3 k with hat on top close parentheses plus mu open parentheses 9 i with hat on top minus 5 j with hat on top plus 3 k with hat on top close parentheses ? end style"},"status":"ok"}