{"result":{"text":"begin mathsize 14px style rightwards double arrow fraction numerator c with rightwards arrow on top times a with rightwards arrow on top over denominator open vertical bar a with rightwards arrow on top close vertical bar end fraction equals fraction numerator c with rightwards arrow on top times b with rightwards arrow on top over denominator open vertical bar b with rightwards arrow on top close vertical bar end fraction rightwards double arrow c with rightwards arrow on top times a with rightwards arrow on top equals 2 open parentheses c with rightwards arrow on top times b with rightwards arrow on top close parentheses end style"},"status":"ok"}