File: /var/www/content-sp/wiris-formulas/0dcb2cd6eb463be80c6a650be6dfee7a.ini
mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mrow><mi>cot</mi><mo>⁡</mo><mi>cotA</mi><mo>=</mo><mfrac><mi mathvariant="normal">n</mi><mrow><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn></mrow></mfrac><mo>,</mo><mi>cot</mi><mo>⁡</mo><mi>cotB</mi><mo>=</mo><mfrac><mn>1</mn><mrow><mn>2</mn><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn></mrow></mfrac><mspace linebreak="newline"/><mi>put</mi><mo> </mo><mi mathvariant="normal">n</mi><mo> </mo><mo>=</mo><mo> </mo><mn>0</mn><mspace linebreak="newline"/><mo>▭</mo><mo>(</mo><mi>cot</mi><mo>⁡</mo><mo>〖</mo><mi mathvariant="normal">A</mi><mo>=</mo><mn>0</mn><mo>〗</mo><mo> </mo><mo>)</mo><mo> </mo><mo>▭</mo><mo>(</mo><mi>cot</mi><mo>⁡</mo><mo>〖</mo><mi mathvariant="normal">B</mi><mo>=</mo><mn>1</mn><mo>〗</mo><mo> </mo><mo>)</mo><mspace linebreak="newline"/><mi>Now</mi><mo>,</mo><mspace linebreak="newline"/><mi>cot</mi><mo>⁡</mo><mi>cot</mi><mfenced separators="|"><mrow><mi mathvariant="normal">A</mi><mo>+</mo><mi mathvariant="normal">B</mi></mrow></mfenced><mo>=</mo><mfrac><mrow><mi>cot</mi><mo>⁡</mo><mi>cotAcot</mi><mo>B</mo><mo>-</mo><mn>1</mn></mrow><mrow><mi>cot</mi><mo>⁡</mo><mi>cotA</mi><mo>+</mo><mi>cot</mi><mo>⁡</mo><mi>cotB</mi></mrow></mfrac><mo>=</mo><mo>-</mo><mn>1</mn><mspace linebreak="newline"/></mrow></mstyle></math>