{"result":{"text":"begin mathsize 14px style a with rightwards arrow on top equals i with hat on top minus j with hat on top plus 2 k with hat on top comma b with hat on top equals 2 i with hat on top plus 4 j with hat on top plus k with hat on top comma c with rightwards arrow on top equals lambda i with hat on top plus j with hat on top plus mu k with hat on top end style"},"status":"ok"}