{"result":{"text":"begin mathsize 14px style sin to the power of negative 1 end exponent open parentheses fraction numerator 2 p over denominator 1 plus p squared end fraction close parentheses minus cos to the power of negative 1 end exponent open parentheses fraction numerator 1 minus q squared over denominator 1 plus q squared end fraction close parentheses equals tan to the power of negative 1 end exponent open parentheses fraction numerator 2 x over denominator 1 minus x squared end fraction close parentheses end style"},"status":"ok"}