{"result":{"text":"tan open square brackets 1 half sin to the power of negative 1 end exponent open parentheses fraction numerator 2 x over denominator 1 plus x squared end fraction close parentheses plus 1 half cos to the power of negative 1 end exponent open parentheses fraction numerator 1 minus x squared over denominator 1 plus x squared end fraction close parentheses close square brackets equals"},"status":"ok"}