mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><msqrt><mfenced open="[" close="]" separators="|"><mfrac><mrow><mn>1</mn><mo>-</mo><mi>cosA</mi></mrow><mrow><mn>1</mn><mo>+</mo><mi>coSA</mi></mrow></mfrac></mfenced></msqrt></math>